Question

1. What are valence electrons? How many does H, Be, B, C AND N have?

Answer 1

Step-by-step explanation:

Valence electrons are electrons in the outermost shell of an atom,and that can participate in the formation of a chemical bond if the outermost shell is not closed.

H - 1 electron

Be - 4 electrons

B - 5 electrons

C - 6 electrons

N - 7 electrons