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science
Electron Configuration
What atom matches this electron configuration?1s2 2s2 2p6 3s2
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Neon
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Magnesium
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Aluminum
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Potassium
Which is the electron configuration for an oxygen atom?
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1s22s22p63s23p64s2
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1s22s22p4
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1s22s22p6
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1s22s22p63s23p6
What is the maximum number of electrons that an orbital can have?
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1 electron
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2 electrons
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3 electrons
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4 electrons
How many valence electrons are represented here?
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7
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5
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2
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8
How many d orbitals are there in a given sublevel?
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1
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3
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5
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7
How many p orbitals are there in a sublevel?
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2
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1
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4
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3
How many electrons can the d sublevel hold?
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8
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10
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2
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4
What is this element? 1s22s22p63s23p64s23d104p6
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Argon
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Krypton
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Selenium
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Bromide
What atom matches this electron configuration?[Xe] 6s2 4f14 5d9
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Mercury
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Gold
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Platinum
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Thallium
What is the shorthand electron configuration for Sulfur atom?
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[Ar] 3p4
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[He] 3s23p4
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[Ne] 3s23p4
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[Na] 3s23p3
How many electrons can the first energy level hold?
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1
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2
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8
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0
How many valence electrons does Chlorine have?
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5
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2
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7
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5
How many valence electrons does phosphorus have?
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5
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2
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8
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15
What element has the valence shell configuration 3s2 3p2
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Al
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B
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Si
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Ga
Which element is pictured?
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neon
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fluorine
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magnesium
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argon
What noble gas should be used to write the shorthand configuration for Te?
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Ar
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Kr
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Xe
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Sb
Identify the element in Period 5 that has 1 valence electron?
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Rb
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Nb
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Ag
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Sb
What element in Period 4 has 5 valence electrons?
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Zr
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As
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V
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Sb
Which of the following is a p block element?
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Ca
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Ar
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Re
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Au
Electron arrangement that uses arrows
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Electron configuration
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Shorthand configuration
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Lewis dot structure
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Orbital diagram
The electron configuration of an atom is 1s22s22p The number of electrons in the atom is
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3
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6
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8
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10
How many atomic orbitals are there in the p sublevel?
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2
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3
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4
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5
Electrons occupy orbitals of lowest energy first is part of what electron configuration rule?
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Hund’s Rule
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Aufbau Principle
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Pauli Exclusion Principle
How many orbitals are there in the d sublevel?
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1
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3
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5
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7
How many electrons can the s sublevel hold?
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14
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10
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2
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6
How many electrons can the f sublevel hold?
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14
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10
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2
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6
Which electron configuration shows a violation of Hund's Rule?
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A only
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A, B and C
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C and A
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A, B and D
Which are the four energy sublevels?
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s,p,d,f
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a,b,c,d
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s,t,e,p
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d,r,o,f
What rule(s) do you need to know for Electron Configuration?
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Aufbau Principle only
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Pauli Exclusion Principle only
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Hund's Rule only
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All three of them
Within an energy level, which sublevel is the lowest in energy?
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s
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f
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d
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p
What is incorrect about this orbital diagram?
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Both arrows in the 1st 2p orbital should be pointing up
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There is nothing incorrect with this diagram
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In the 2p energy level, each of the arrow should be in separate orbital, with each pointing upwards.
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All the arrows should be pointing up.
In writing the noble gas notation for elements in the 4th period, which noble gas will be used?
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Period 1 noble gas (Helium)
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Period 2 noble gas (Neon)
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Period 3 noble gas (Argon)
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Period 4 noble gas (Krypton)
Which of these IS NOT a way to indicate electron configuration?
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Orbital Notation
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Electron-configuration Notation
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Noble gas Notation
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Alkaline-earth Notation
What is the electron configuration of calcium?
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2.8.8.2
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2.8.10
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20
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2.18.2
What is the electron configuration of sodium?
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2.8
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2.8.2
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2.8.1
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11
Which element has an electron configuration of 2.5?
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Oxygen
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Nitrogen
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Phosphorus
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Carbon
Which element has an electron configuration of 2.8.8?
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Lead
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Flourine
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Neon
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Argon
What is the electron configuration of Aluminium?
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2.8.3
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2.11
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13
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2.8.2
What is the electron configuration of chlorine?
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17
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2.7
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2.8.7
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2.8.4
Which element has the electron configuration of 2.8.2?
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Magnesium
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Sodium
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Sulfur
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Arsenic
Which element has the electron configuration of 2.8.4?
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Neon
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Boron
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Gallium
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Silicon
What is the electron configuration of beryllium?
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2.2
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2.4
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4
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6
Which element has the electron configuration of 2.7?
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Krypton
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Iodine
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Flourine
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Barium
An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.
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20
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10
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5
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25
What is the atomic mass of the atom pictured?
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9
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10
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18
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19
What is the atomic number of the atom pictured?
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9
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10
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18
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19
Identify this atom:
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Lithium
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Chlorine
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Phosphorus
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Fluorine
What is the rule to follow when arranging electrons for a BOHR model of an atom?
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2-2-8
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2-8-10
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2-4-6-8
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2-8-8
How many electrons does Si contain? (click to see image)
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14
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28
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2
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4
Rows on the period table are called _____ while columns are called _____.
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groups, families
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groups, periods
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periods, groups
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families, groups
How many electrons does this oxygen atom have?
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16
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8
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24
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6
How many protons does this oxygen atom have?
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16
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8
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24
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6
What is the atomic number of Oxygen?
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16
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8
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24
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6
What is the atomic mass of Oxygen?
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16
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8
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24
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6
How many energy levels does Oxygen have?
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16
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8
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2
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6
How many electrons does the first shell hold?
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1
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2
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4
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8
How many electrons can be in the 2nd energy level hold?
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1
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2
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4
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8
If both protons and neutrons are found in the nucleus, why is it positive?
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The reason it is positive is because neutrons have a positive charge and protons have a negative charge.
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The reason it is positive is because neutrons have a negative charge and protons have a positive charge
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The reason it is positive is because neutrons have no charge and protons have a positive charge.
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The reason it is positive is because neutrons have no charge and protons have a negative charge
What on a periodic table tells you the number of protons in an atom?
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Atom number
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Atomic number
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Proton number
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Mass number
What are the elements in group 1 (the far left) of the periodic table called?
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Alkali metals
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Alkaline earth metals
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Halogens
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Noble gases
What are the elements in group 2 of the periodic table called?
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Alkali metals
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Alkaline earth metals
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Halogens
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Noble gases
What are the elements in groups 3-12 of the periodic table called?
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Transition metals
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Non-metals
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Metalloids
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Metals
Hydrogen is a:
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Alkali metal
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Metalloid
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Non-metal
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Noble gas
A tiny, negatively charged particle that moves around the nucleus of an atom in clouds/shells is called:
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An electron
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A proton
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A neutron
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A shell
The number of outermost electrons an element has is equal to its:
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Period number
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Group number
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Valence number
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Atomic number
True or False - Protons and Neutrons have about the same mass.
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True - They have about the same mass
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False - They do not have about the same mass
Which subatomic particle has a positive (+) charge?
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Neutron
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Proton
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Electron
Which subatomic particle has a negative (-) charge?
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Proton
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Electron
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Neutron
How many electron shells/levels does this atom have?
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1
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2
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3
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4
How many electrons does this picture show?
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4
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5
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6
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3
In this picture, the Electrons are found in which color?
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Blue
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Red
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Green
In the periodic table,
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R is just above Q
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Q is just above R
This element has the atomic numberAtoms of this element have 6 electrons in their outer shell. Where is this element located in the periodic table?
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A
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B
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C
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D
The picture pattern indicates which of the following on the periodic table?
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A group
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A period
Most of the elements on the periodic table are classified as _____.
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Metals
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Nonmetals
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Metalloids
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Periods
How many electron shells are in this atom?
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15
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5
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3
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2
How many valence electrons are represented here?
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7
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5
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2
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8
Which one is the electron configuration for an oxygen atom?
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1s22s22p63s23p64s2
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1s22s22p4
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1s22s22p6
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1s22s22p63s23p6
How many valence electrons are represented here?
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7
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5
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2
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8
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