Chem4kids
Chem4 Kids: Nitrogen (N)
Here you can find some great information about the 7th element in the periodic table, "nitrogen." Content focuses on nitrogen's electrons, where you can find nitrogen in nature and in the home, and how nitrogen combines with other elements.
Chem4kids
Chem4 Kids: Chlorine (Cl)
The 17th element in the periodic table is defined, chlorine. Find out how many electrons chlorine has and where you can find it in nature and in the home.