Count the valence electrons

Exercise and reference answers

Questions

1. Answer

   5

   Question

   Valence electrons shown in the Lewis dot symbol of nitrogen?

2. Answer

   8

   Question

   Valence electrons a full octet gives an atom?

3. Answer

   24

   Question

   Valence electrons to account for in the carbonate ion, charge two minus?

4. Answer

   8

   Question

   Valence electrons available for the ammonium ion, charge one plus?

Instructions

Key in the number of valence electrons asked for in each line, using the number pad.

Explanation