Question

atomic mass number is a whole number

Answer 1

I think it's of std 8th ..I hope I'm right

HERE'S YOUR ANSWER. .

The atomic mass reported on a periodic table is the weighted average of all the naturally occuring isotopes. Being an average it would be most unlikely to be a whole number. The mass of an individual atom in atomic mass units is the mass relative to carbon-12.

HOPE IT HELPS ✌

Answer 2

No because atom is not stable at 0 atmic number