Write the valencies of following elements. a) Be b) N and what is th

1.	Write the valencies of following elements. a) Be b) N and what is the compound formed when these two reacted?
Answer» a) The electronic configuration of Be is 1s² 2s². So its valency is 2. b) The electronic configuration of Nitrogen is 1s² 2s² 2p³. So its valency is 3. ∴ Formula of the compound is Be₃N₂.

Write the valencies of following elements. a) Be b) N and what is the compound formed when these two reacted?

Answer»

a) The electronic configuration of Be is 1s² 2s². So its valency is 2.

b) The electronic configuration of Nitrogen is 1s² 2s² 2p³. So its valency is 3.

∴ Formula of the compound is Be₃N₂.