Question

The mass of the atom is concentrated in the nucleus. Give Reason.

Answer 1

Answer:

All the mass of an atom is concentrated in the nucleus because atom contains three subatomic particles like electron, proton and neutron. ... Atomic mass number is a whole number because it is the sum of numbers of protons and numbers of neutrons present in an atom.....

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Answer 2

Answer:

• Although similar in mass, proton are positively charged, Therefore, the numbers of neutron in an atom contribute significantly to it's mass, but not to it's charge . Electronic are much smaller in mass than protons.