The Atomic mass of Fe
  • 55
  • 56
  • 54
  • 53
The Atomic mass of Cl
  • 34.5
  • 35.5
  • 36.5
  • 35.6
The atomic mass of K
  • 35
  • 36
  • 38
  • 39
The atomic mass of Zn
  • 56
  • 57
  • 65
  • 75
The symbol for cobalt
  • CO
  • Cb
  • Co
  • cO
The Atomic mass of B
  • 9
  • 10
  • 11
  • 12
The Atomic mass of Cu
  • 36.5
  • 53.5
  • 63.5
  • 56.5
The atomic number of Ar
  • 39
  • 40
  • 22
  • 18
Which two elements have the same atomic mass
  • K & Ca
  • Ar & K
  • Fe & Co
  • Co & Ni
The no. of neutrons in Argon
  • 24
  • 22
  • 20
  • 18
How do you feel remembering the atomic masses.........
  • easy
  • Average
  • Difficult
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