Question

In order to attain octet configuration, the atoms share, lose or gain electrons, then its atomic mass

• A. Changes according to number of electrons being gained
• B. Does not change
• C. Remains the same in case of sharing, but it changes in case of losing or gaining electrons
• D. Increases

Answer 1

The correct option is B

Does not change

The loss or gain of electrons does not change the atomic mass because the mass of electrons is much lighter than the mass of protons and neutrons.

So, the mass of an electron is not considered for atomic mass.

Atomic mass=mass of nucleus = mass of protons + mass of neutrons.