Question

Statement given below is incorrect. Write the correct statement:

1. When an element accepts 2 electrons in its valence shell, its valency is 2⁺.

Answer 1

• The number of electrons donated or accepted by an atom of an element to attain inert gas electronic configuration is called valency.
• When an element accepts electrons in its valence shell, the number of electrons increases as compared to the number of protons in the nucleus.
• This will create a negative charge on the nucleus and hence possess negative valency.

Hence, the correct statement is When an element accepts 2 electrons in its valence shell, its valency is 2^-.