Question

carbon and nitrogen have same atomic mass of 14u. Will they have the same valency ?

Explain​

Answer 1

yes... the valency is same..

Answer 2

Answer:

Nitrogen-14 is actually an isotope of nitrogen, so right from the start, you can say that it is a neutral atom.

Isotopes are atoms that have the same number of protons but different numbers of neutrons in the nucleus. You know that nitrogen-14 has  7

protons in the nucleus because it is an isotope of nitrogen, which has an atomic number equal to  7 .

Because nitrogen-14 is a neutral atom, the number of protons it has in its nucleus must be equal to the number of electrons that surround its nucleus.

neutral atom  

⇒no. of protons = no. of electrons

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