how many valance electrons does nitrogen have?

7N = 1s2 2s2 2p3; therefore, in the last shell, N has 5 electrons. Note it is in column VA (or 15 depending upon the system your prof is using) and that tells you it has 5 electrons.

thank you so much!

To determine the number of valence electrons that nitrogen (N) has, we need to look at its position on the periodic table. Nitrogen is located in Group 15 (Group VA) of the periodic table.

Group 15 elements have five valence electrons. The number of valence electrons corresponds to the group number of the element. Therefore, nitrogen has five valence electrons.

You can verify this information by finding nitrogen on the periodic table and checking its group number. The group number for nitrogen is 15, indicating that it has five valence electrons.