Question

What is valency? Write valencies of Hg, Fe, Cu and Sn. short​

Answer 1

Answer:

Valency is the combining capacity of an element. The number of electrons donated or accepted by an atom of an element so as to have electronic configuration of nearest noble gas is called its valency.

Answer 2

Answer:

Valence is the the combining power of an element, especially as measured by the number of hydrogen atoms it can displace or combine with.

valencie of

Hg is 2

Fe is 2,3

Cu is 2

Sn is 2,4

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