List of elements by atomic properties

This is a list of chemical elements and their atomic properties.

Table

Z	Name	Standard atomic weight	Electronegativity (Pauling)	First Ionization Energy (eV)	Atomic radii(pm)	Van der Waals radii(pm)	Covalent radii(pm)	Valence electrons
1	Hydrogen	1.00794(7)2 3 4	2.2	13.59844	25	120	38	1
2	Helium	4.002602(2)2 4	no data	24.58741	31	140	32	2
3	Lithium	6.941(2)2 3 4 5	0.98	5.39172	145	182	134	1
4	Beryllium	9.012182(3)	1.57	9.3227	105	no data	90	2
5	Boron	10.811(7)2 3 4	2.04	8.29803	85	no data	82	3
6	Carbon	12.0107(8)2 4	2.55	11.2603	70	170	77	4
7	Nitrogen	14.0067(2)2 4	3.04	14.53414	65	155	75	5
8	Oxygen	15.9994(3)2 4	3.44	13.61806	60	152	73	6
9	Fluorine	18.9984032(5)	3.98	17.42282	50	147	71	7
10	Neon	20.10097(6)2 3	no data	21.5646	38	154	69	8
11	Sodium	22.98976928(2)	0.93	5.13908	180	227	154	1
12	Magnesium	24.3050(6)	1.31	7.64624	150	173	130	2
13	Aluminium	26.9815386(8)	1.61	5.98577	125	no data	118	3
14	Silicon	28.0855(3)4	1.9	8.15169	110	210	111	4
15	Phosphorus	30.973762(2)	2.19	10.48669	100	180	106	5
16	Sulphur	32.065(5)2 4	2.58	10.36001	100	180	102	6
17	Chlorine	35.453(2)2 3 4	3.16	12.96764	100	175	99	7
18	Argon	39.948(1)2 4	no data	15.75962	71	188	97	8
19	Potassium	39.0983(1)	0.82	4.34066	220	275	196	1
20	Calcium	40.078(4)2	1	6.11316	180	no data	174	2
21	Scandium	44.955912(6)	1.36	6.5615	160	no data	144	2
22	Titanium	47.867(1)	1.54	6.8281	140	no data	136	2
23	Vanadium	50.9415(1)	1.63	6.7462	135	no data	125	2
24	Chromium	51.9961(6)	1.66	6.7665	140	no data	127	1
25	Manganese	54.938045(5)	1.55	7.43402	140	no data	139	2
26	Iron	55.845(2)	1.83	7.9024	140	no data	125	2
27	Cobalt	58.933195(5)	1.91	7.6398	135	163	121	2
28	Nickel	58.6934(4)	1.88	7.881	135	no data	126	2
29	Copper	63.546(3)4	1.9	7.72638	135	140	138	1
30	Zinc	65.38(2)	1.65	9.3942	135	139	131	2
31	Gallium	69.723(1)	1.81	5.9993	130	187	126	3
32	Germanium	72.64(1)	2.01	7.8994	125	no data	122	4
33	Arsenic	74.92160(2)	2.18	9.7886	115	185	119	5
34	Selenium	78.96(3)4	2.55	9.75238	115	190	116	6
35	Bromine	79.904(1)	2.96	11.81381	115	185	114	7
36	Krypton	83.798(2)2 3	3	13.99961	88	202	110	8
37	Rubidium	85.4678(3)2	0.82	4.17713	235	no data	211	1
38	Strontium	87.62(1)2 4	0.95	5.6949	200	no data	192	2
39	Yttrium	88.90585(2)	1.22	6.2171	180	no data	162	2
40	Zirconium	91.224(2)2	1.33	6.6339	155	no data	148	2
41	Niobium	92.90638(2)	1.6	6.75885	145	no data	137	1
42	Molybdenum	95.96(2)2	2.16	7.09243	145	no data	145	1
43	Technetium	[98]1	1.9	7.28	135	no data	156	1
44	Ruthenium	101.07(2)2	2.2	7.3605	130	no data	126	1
45	Rhodium	102.90550(2)	2.28	7.4589	135	no data	135	1
46	Palladium	106.42(1)2	2.2	8.3369	140	163	131
47	Silver	107.8682(2)2	1.93	7.5762	160	172	153	1
48	Cadmium	112.411(8)2	1.69	8.9938	155	158	148	2
49	Indium	114.818(3)	1.78	5.78636	155	193	144	3
50	Tin	118.710(7)2	1.96	7.3439	145	217	141	4
51	Antimony	121.760(1)2	2.05	8.6084	145	no data	138	5
52	Tellurium	127.60(3)2	2.1	9.0096	140	206	135	6
53	Iodine	126.90447(3)	2.66	10.45126	140	198	133	7
54	Xenon	131.293(6)2 3	2.6	12.1298	108	216	130	8
55	Caesium	132.9054519(2)	0.79	3.8939	260	no data	225	1
56	Barium	137.327(7)	0.89	5.2117	215	no data	198	2
57	Lanthanum	138.90547(7)2	1.1	5.5769	195	no data	169	2
58	Cerium	140.116(1)2	1.12	5.5387	185	no data	no data	2
59	Praseodymium	140.90765(2)	1.13	5.473	185	no data	no data	2
60	Neodymium	144.242(3)2	1.14	5.525	185	no data	no data	2
61	Promethium	[145]1	no data	5.582	185	no data	no data	2
62	Samarium	150.36(2)2	1.17	5.6436	185	no data	no data	2
63	Europium	151.964(1)2	no data	5.6704	185	no data	no data	2
64	Gadolinium	157.25(3)2	1.2	6.1501	180	no data	no data	2
65	Terbium	158.92535(2)	no data	5.8638	175	no data	no data	2
66	Dysprosium	162.500(1)2	1.22	5.9389	175	no data	no data	2
67	Holmium	164.93032(2)	1.23	6.0215	175	no data	no data	2
68	Erbium	167.259(3)2	1.24	6.1077	175	no data	no data	2
69	Thulium	168.93421(2)	1.25	6.18431	175	no data	no data	2
70	Ytterbium	173.054(5)2	no data	6.25416	175	no data	no data	2
71	Lutetium	174.9668(1)2	1.27	5.4259	175	no data	160	2
72	Hafnium	178.49(2)	1.3	6.82507	155	no data	150	2
73	Tantalum	180.94788(2)	1.5	7.5496	145	no data	138	2
74	Tungsten	183.84(1)	2.36	7.864	135	no data	146	2
75	Rhenium	186.207(1)	1.9	7.8335	135	no data	159	2
76	Osmium	190.23(3)2	2.2	8.4382	130	no data	128	2
77	Iridium	192.217(3)	2.2	8.967	135	no data	137	2
78	Platinum	195.084(9)	2.28	8.9587	135	175	128	1
79	Gold	196.966569(4)	2.54	9.2255	135	166	144	1
80	Mercury	200.59(2)	2	10.4375	150	155	149	2
81	Thallium	204.3833(2)	1.62	6.1082	190	196	148	3
82	Lead	207.2(1)2 4	2.33	7.41666	180	202	147	4
83	Bismuth	208.98040(1)	2.02	7.2856	160	no data	146	5
84	Polonium	[209]1	2	8.417	190	no data	no data	6
85	Astatine	[210]1	2.2		no data	no data	no data	7
86	Radon	[222]1	no data	10.7485	120	no data	145	8
87	Francium	[223]1	0.7	4.0727	no data	no data	no data	1
88	Radium	[226]1	0.9	5.2784	215	no data	no data	2
89	Actinium	[227]1	1.1	5.17	195	no data	no data	2
90	Thorium	232.03806(2)1 2	1.3	6.3067	180	no data	no data	2
91	Protactinium	231.03588(2)1	1.5	5.89	180	no data	no data	2
92	Uranium	238.02891(3)1 2 3	1.38	6.19405	175	186	no data	2
93	Neptunium	[237]1	1.36	6.2657	175	no data	no data	2
94	Plutonium	[244]1	1.28	6.0262	175	no data	no data	2
95	Americium	[243]1	1.3	5.9738	175	no data	no data	2
96	Curium	[247]1	1.3	5.9915				2
97	Berkelium	[247]1	1.3	6.1979				2
98	Californium	[251]1	1.3	6.2817				2
99	Einsteinium	[252]1	1.3	6.42				2
100	Fermium	[257]1	1.3	6.5				2
101	Mendelevium	[258]1	1.3	6.58				2
102	Nobelium	[259]1	1.3	6.65				2
103	Lawrencium	[262]1		4.9				3
104	Rutherfordium	[261]1		6
105	Dubnium	[262]1
106	Seaborgium	[263]1
107	Bohrium	[262]1
108	Hassium	[265]1
109	Meitnerium	[266]1
110	Darmstadtium	[269]1
111	Roentgenium	[272]1
112	Copernicium	[277]1
113	Ununtrium	[283]1
114	Flerovium	[285]1
115	Ununpentium	[287]1
116	Livermorium	[289]1
117	Ununseptium	[291]1
118	Ununoctium	[293]1

Notes

• a few atomic radii are calculated, not experimental