Explanation
Aufbau principle states that, as electron enters the orbital of lowest energy first and subsequent electrons are filled in the order of increasing energies.
p orbital has 3 dumbles(px, py, pz) and each dumble can accommodate maximum 2 electron. So total no. of electrons in p orbital is 6(maximum).
According to Aufbau principle, electrons enters into orbitals according to their energy. Electrons with lesser (n+l) value enters first, for same (n+l) value electron with lesser value of n have less energy.
n = 5 l = 0 ⇒ n+l = 5
n = 3, l = 2 ⇒ n+l = 5
Both have same n+l value, so electron will enter into n = 3, l = 2 orbital
Number of waves in an orbit = n.
Splitting up of the lines of the emission spectrum in a magnetic field is called Zeeman effect.
Rb has atomic No. 37
So, Electronic configuration is [Kr]5sˈ
So, it last electron enter in 5s subshell
Quantum No. are n = 5, l = 0, m = 0
S = +1/2 or -1/2.
Total No. of nodes is (n-1)
For 3s orbital node = 3-1 = 2.
For n = 3
Total no. of orbital is 2n+1
= 2*3+1= 7.
Azimuthal quantum No. l of d orbital is 2.
Aufbau principle tells that the energy of orbital depends upon (n+l) value.
(n+l) for 3d is maximum.
So, it is highest energy level in the given option.
By Aufbau principle energy of orbital depend upon (n+l) value.
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