Periodic Table Navigator

		Group
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
Period	▲ 3 ▼	11 Na Sodium [Ne] 3s1	12 Mg Magnesium [Ne] 3s2											13 Al Aluminum [Ne] 3s2 3p1	14 Si Silicon [Ne] 3s2 3p2	15 P Phosphorus [Ne] 3s2 3p3	16 S Sulfur [Ne] 3s2 3p4	17 Cl Chlorine [Ne] 3s2 3p5	18 Ar Argon [Ne] 3s2 3p6

Tip: Hover over an element to compare its electron configuration to that of the element to its right.