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Periodic Table of Elements

Sorted by 1st Ionization Potential (eV)

	Name	Sym	#
3.83	Francium	Fr	87
3.894	Cesium	Cs	55
4.177	Rubidium	Rb	37
4.341	Potassium	K	19
5.139	Sodium	Na	11
5.17	Actinium	Ac	89
5.212	Barium	Ba	56
5.279	Radium	Ra	88
5.392	Lithium	Li	3
5.4259	Lutetium	Lu	71
5.46	Praseodymium	Pr	59
5.53	Neodymium	Nd	60
5.54	Cerium	Ce	58
5.554	Promethium	Pm	61
5.58	Lanthanum	La	57
5.64	Samarium	Sm	62
5.67	Europium	Eu	63
5.695	Strontium	Sr	38
5.786	Indium	In	49
5.86	Terbium	Tb	65
5.89	Protactinium	Pa	91
5.94	Dysprosium	Dy	66
5.986	Aluminum	Al	13
5.993	Americium	Am	95
5.999	Gallium	Ga	31
6.018	Holmium	Ho	67
6.02	Curium	Cm	96
6.05	Uranium	U	92
6.06	Plutonium	Pu	94
6.08	Thorium	Th	90
6.101	Erbium	Er	68
6.108	Thallium	Tl	81
6.113	Calcium	Ca	20
6.15	Gadolinium	Gd	64
6.184	Thulium	Tm	69
6.19	Neptunium	Np	93
6.23	Berkelium	Bk	97
6.254	Ytterbium	Yb	70
6.3	Californium	Cf	98
6.38	Yttrium	Y	39
6.42	Einsteinium	Es	99
6.5	Fermium	Fm	100
6.54	Scandium	Sc	21
6.58	Mendelevium	Md	101
6.65	Hafnium	Hf	72
6.65	Nobelium	No	102
6.74	Vanadium	V	23
6.766	Chromium	Cr	24
6.82	Titanium	Ti	22
6.84	Zirconium	Zr	40
6.88	Niobium	Nb	41
7.099	Molybdenum	Mo	42
7.28	Technetium	Tc	43
7.289	Bismuth	Bi	83
7.344	Tin	Sn	50
7.37	Ruthenium	Ru	44
7.416	Lead	Pb	82
7.435	Manganese	Mn	25
7.46	Rhodium	Rh	45
7.576	Silver	Ag	47
7.635	Nickel	Ni	28
7.646	Magnesium	Mg	12
7.726	Copper	Cu	29
7.86	Cobalt	Co	27
7.87	Iron	Fe	26
7.88	Rhenium	Re	75
7.89	Tantalum	Ta	73
7.899	Germanium	Ge	32
7.98	Tungsten	W	74
8.151	Silicon	Si	14
8.298	Boron	B	5
8.34	Palladium	Pd	46
8.42	Polonium	Po	84
8.641	Antimony	Sb	51
8.7	Osmium	Os	76
8.993	Cadmium	Cd	48
9	Platinum	Pt	78
9.009	Tellurium	Te	52
9.1	Iridium	Ir	77
9.225	Gold	Au	79
9.322	Beryllium	Be	4
9.394	Zinc	Zn	30
9.65	Astatine	At	85
9.752	Selenium	Se	34
9.81	Arsenic	As	33
10.36	Sulfur	S	16
10.437	Mercury	Hg	80
10.451	Iodine	I	53
10.486	Phosphorus	P	15
10.748	Radon	Rn	86
11.26	Carbon	C	6
11.814	Bromine	Br	35
12.13	Xenon	Xe	54
12.967	Chlorine	Cl	17
13.598	Hydrogen	H	1
13.618	Oxygen	O	8
13.999	Krypton	Kr	36
14.534	Nitrogen	N	7
15.759	Argon	Ar	18
17.422	Fluorine	F	9
21.564	Neon	Ne	10
24.587	Helium	He	2

[Last Updated: 2/22/2007]

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