Periodic Table Navigator

		Group
		1	2	f1	f2	f3	f4	f5	f6	f7	f8	f9	f10	f11	f12	f13	f14	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
Period	▲ 6 ▼	55 Cs Cesium [Xe] 6s1	56 Ba Barium [Xe] 6s2	57 La Lanthanum [Xe] 6s2 5d1	58 Ce Cerium [Xe] 6s2 4f1 5d1	59 Pr Praseodymium [Xe] 6s2 4f3	60 Nd Neodymium [Xe] 6s2 4f4	61 Pm Promethium [Xe] 6s2 4f5	62 Sm Samarium [Xe] 6s2 4f6	63 Eu Europium [Xe] 6s2 4f7	64 Gd Gadolinium [Xe] 6s2 4f7 5d1	65 Tb Terbium [Xe] 6s2 4f9	66 Dy Dysprosium [Xe] 6s2 4f10	67 Ho Holmium [Xe] 6s2 4f11	68 Er Erbium [Xe] 6s2 4f12	69 Tm Thulium [Xe] 6s2 4f13	70 Yb Ytterbium [Xe] 6s2 4f14	71 Lu Lutetium [Xe] 6s2 4f14 5d1	72 Hf Hafnium [Xe] 6s2 4f14 5d2	73 Ta Tantalum [Xe] 6s2 4f14 5d3	74 W Tungsten [Xe] 6s2 4f14 5d4	75 Re Rhenium [Xe] 6s2 4f14 5d5	76 Os Osmium [Xe] 6s2 4f14 5d6	77 Ir Iridium [Xe] 6s2 4f14 5d7	78 Pt Platinum [Xe] 6s1 4f14 5d9	79 Au Gold [Xe] 6s1 4f14 5d10	80 Hg Mercury [Xe] 6s2 4f14 5d10	81 Tl Thallium [Xe] 6s2 4f14 5d10 6p1	82 Pb Lead [Xe] 6s2 4f14 5d10 6p2	83 Bi Bismuth [Xe] 6s2 4f14 5d10 6p3	84 Po Polonium [Xe] 6s2 4f14 5d10 6p4	85 At Astatine [Xe] 6s2 4f14 5d10 6p5	86 Rn Radon [Xe] 6s2 4f14 5d10 6p6

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