Ions and Atoms

Front

Na+

Back

11 protons, 10 electrons

Front

Ca2+

Back

20 protons, 18 electrons

Front

Al3+

Back

13 protons, 10 electrons

Front

Cl-

Back

17 protons, 18 electrons

Front

O2-

Back

8 protons, 10 electrons

Front

Ne

Back

10 protons, 10 electrons

Front

N3-

Back

7 protons, 10 electrons

Front

Mg2+

Back

12 protons, 10 electrons

Front

F-

Back

9 protons, 10 electrons

Front

K+

Back

19 protons, 18 electrons