Question

WRITE TRUE OR FALSE
1) Valency a metal is the number of electrons gained by as atom
2) nitrogen and phosphorus ane tetravatent elements​

Answer 1

Answer:

1. Both 1 and 2 are false

Explanation:

1. Metals usually lose electrons to gain a stable configuration, thus the valency cannot be the number of electrons gained.

2. Nitrogen (N) and Phosphorous (P) are elements in the 5A group, thus the common valency is 3.

Answer 2

Answer:

both statement 1 and 2 are false

Explanation:

1. valency of the metal is the number of electrons donated by it from its valence shell .

2. nitrogen and phosphorus are trivalent elements because they accept 3 electrons from other to complete its octet.