PERIODIC TABLE

 

PERIODIC TABLE

No.		Atomic Weight	Name	Sym.	M.P. (°C)	B.P.  (°C)	Density* (g/cm3)	Earth crust (%)*	Discovery (Year)	Group*	Electron configuration	Ionization energy (eV)
1		1.008	Hydrogen	H	-259	-253	0.09	0.14	1776	1	1s1	13.60
2		4.003	Helium	He	-272	-269	0.18		1895	18	1s2	24.59
3		6.941	Lithium	Li	180	1,347	0.53		1817	1	[He] 2s1	5.39
4		9.012	Beryllium	Be	1,278	2,970	1.85		1797	2	[He] 2s2	9.32
5		10.811	Boron	B	2,300	2,550	2.34		1808	13	[He] 2s2 2p1	8.30
6		12.011	Carbon	C	3,500	4,827	2.26	0.09	ancient	14	[He] 2s2 2p2	11.26
7		14.007	Nitrogen	N	-210	-196	1.25		1772	15	[He] 2s2 2p3	14.53
8		15.999	Oxygen	O	-218	-183	1.43	46.71	1774	16	[He] 2s2 2p4	13.62
9		18.998	Fluorine	F	-220	-188	1.70	0.03	1886	17	[He] 2s2 2p5	17.42
10		20.180	Neon	Ne	-249	-246	0.90		1898	18	[He] 2s2 2p6	21.56
11		22.990	Sodium	Na	98	883	0.97	2.75	1807	1	[Ne] 3s1	5.14
12		24.305	Magnesium	Mg	639	1,090	1.74	2.08	1755	2	[Ne] 3s2	7.65
13		26.982	Aluminum	Al	660	2,467	2.70	8.07	1825	13	[Ne] 3s2 3p1	5.99
14		28.086	Silicon	Si	1,410	2,355	2.33	27.69	1824	14	[Ne] 3s2 3p2	8.15
15		30.974	Phosphorus	P	44	280	1.82	0.13	1669	15	[Ne] 3s2 3p3	10.49
16		32.065	Sulfur	S	113	445	2.07	0.05	ancient	16	[Ne] 3s2 3p4	10.36
17		35.453	Chlorine	Cl	-101	-35	3.21	0.05	1774	17	[Ne] 3s2 3p5	12.97
18		39.948	Argon	Ar	-189	-186	1.78		1894	18	[Ne] 3s2 3p6	15.76
19		39.098	Potassium	K	64	774	0.86	2.58	1807	1	[Ar] 4s1	4.34
20		40.078	Calcium	Ca	839	1,484	1.55	3.65	1808	2	[Ar] 4s2	6.11
21		44.956	Scandium	Sc	1,539	2,832	2.99		1879	3	[Ar] 3d1 4s2	6.56
22		47.867	Titanium	Ti	1,660	3,287	4.54	0.62	1791	4	[Ar] 3d2 4s2	6.83
23		50.942	Vanadium	V	1,890	3,380	6.11		1830	5	[Ar] 3d3 4s2	6.75
24		51.996	Chromium	Cr	1,857	2,672	7.19	0.04	1797	6	[Ar] 3d5 4s1	6.77
25		54.938	Manganese	Mn	1,245	1,962	7.43	0.09	1774	7	[Ar] 3d5 4s2	7.43
26		55.845	Iron	Fe	1,535	2,750	7.87	5.05	ancient	8	[Ar] 3d6 4s2	7.90
27		58.933	Cobalt	Co	1,495	2,870	8.90		1735	9	[Ar] 3d7 4s2	7.88
28		58.693	Nickel	Ni	1,453	2,732	8.90	0.02	1751	10	[Ar] 3d8 4s2	7.64
29		63.546	Copper	Cu	1,083	2,567	8.96		ancient	11	[Ar] 3d10 4s1	7.73
30		65.390	Zinc	Zn	420	907	7.13		ancient	12	[Ar] 3d10 4s2	9.39
31		69.723	Gallium	Ga	30	2,403	5.91		1875	13	[Ar] 3d10 4s2 4p1	6.00
32		72.640	Germanium	Ge	937	2,830	5.32		1886	14	[Ar] 3d10 4s2 4p2	7.90
33		74.922	Arsenic	As	81	613	5.72		ancient	15	[Ar] 3d10 4s2 4p3	9.79
34		78.960	Selenium	Se	217	685	4.79		1817	16	[Ar] 3d10 4s2 4p4	9.75
35		79.904	Bromine	Br	-7	59	3.12		1826	17	[Ar] 3d10 4s2 4p5	11.81
36		83.800	Krypton	Kr	-157	-153	3.75		1898	18	[Ar] 3d10 4s2 4p6	14.00
37		85.468	Rubidium	Rb	39	688	1.63		1861	1	[Kr] 5s1	4.18
38		87.620	Strontium	Sr	769	1,384	2.54		1790	2	[Kr] 5s2	5.69
39		88.906	Yttrium	Y	1,523	3,337	4.47		1794	3	[Kr] 4d1 5s2	6.22
40		91.224	Zirconium	Zr	1,852	4,377	6.51	0.03	1789	4	[Kr] 4d2 5s2	6.63
41		92.906	Niobium	Nb	2,468	4,927	8.57		1801	5	[Kr] 4d4 5s1	6.76
42		95.940	Molybdenum	Mo	2,617	4,612	10.22		1781	6	[Kr] 4d5 5s1	7.09
43	*	98.000	Technetium	Tc	2,200	4,877	11.50		1937	7	[Kr] 4d5 5s2	7.28
44		101.070	Ruthenium	Ru	2,250	3,900	12.37		1844	8	[Kr] 4d7 5s1	7.36
45		102.906	Rhodium	Rh	1,966	3,727	12.41		1803	9	[Kr] 4d8 5s1	7.46
46		106.420	Palladium	Pd	1,552	2,927	12.02		1803	10	[Kr] 4d10	8.34
47		107.868	Silver	Ag	962	2,212	10.50		ancient	11	[Kr] 4d10 5s1	7.58
48		112.411	Cadmium	Cd	321	765	8.65		1817	12	[Kr] 4d10 5s2	8.99
49		114.818	Indium	In	157	2,000	7.31		1863	13	[Kr] 4d10 5s2 5p1	5.79
50		118.710	Tin	Sn	232	2,270	7.31		ancient	14	[Kr] 4d10 5s2 5p2	7.34
51		121.760	Antimony	Sb	630	1,750	6.68		ancient	15	[Kr] 4d10 5s2 5p3	8.61
52		127.600	Tellurium	Te	449	990	6.24		1783	16	[Kr] 4d10 5s2 5p4	9.01
53		126.905	Iodine	I	114	184	4.93		1811	17	[Kr] 4d10 5s2 5p5	10.45
54		131.293	Xenon	Xe	-112	-108	5.90		1898	18	[Kr] 4d10 5s2 5p6	12.13
55		132.906	Cesium	Cs	29	678	1.87		1860	1	[Xe] 6s1	3.89
56		137.327	Barium	Ba	725	1,140	3.59	0.05	1808	2	[Xe] 6s2	5.21
57		138.906	Lanthanum	La	920	3,469	6.15		1839	3	[Xe] 5d1 6s2	5.58
58		140.116	Cerium	Ce	795	3,257	6.77		1803	101	[Xe] 4f1 5d1 6s2	5.54
59		140.908	Praseodymium	Pr	935	3,127	6.77		1885	101	[Xe] 4f3 6s2	5.47
60		144.240	Neodymium	Nd	1,010	3,127	7.01		1885	101	[Xe] 4f4 6s2	5.53
61	*	145.000	Promethium	Pm	1,100	3,000	7.30		1945	101	[Xe] 4f5 6s2	5.58
62		150.360	Samarium	Sm	1,072	1,900	7.52		1879	101	[Xe] 4f6 6s2	5.64
63		151.964	Europium	Eu	822	1,597	5.24		1901	101	[Xe] 4f7 6s2	5.67
64		157.250	Gadolinium	Gd	1,311	3,233	7.90		1880	101	[Xe] 4f7 5d1 6s2	6.15
65		158.925	Terbium	Tb	1,360	3,041	8.23		1843	101	[Xe] 4f9 6s2	5.86
66		162.500	Dysprosium	Dy	1,412	2,562	8.55		1886	101	[Xe] 4f10 6s2	5.94
67		164.930	Holmium	Ho	1,470	2,720	8.80		1867	101	[Xe] 4f11 6s2	6.02
68		167.259	Erbium	Er	1,522	2,510	9.07		1842	101	[Xe] 4f12 6s2	6.11
69		168.934	Thulium	Tm	1,545	1,727	9.32		1879	101	[Xe] 4f13 6s2	6.18
70		173.040	Ytterbium	Yb	824	1,466	6.90		1878	101	[Xe] 4f14 6s2	6.25
71		174.967	Lutetium	Lu	1,656	3,315	9.84		1907	101	[Xe] 4f14 5d1 6s2	5.43
72		178.490	Hafnium	Hf	2,150	5,400	13.31		1923	4	[Xe] 4f14 5d2 6s2	6.83
73		180.948	Tantalum	Ta	2,996	5,425	16.65		1802	5	[Xe] 4f14 5d3 6s2	7.55
74		183.840	Tungsten	W	3,410	5,660	19.35		1783	6	[Xe] 4f14 5d4 6s2	7.86
75		186.207	Rhenium	Re	3,180	5,627	21.04		1925	7	[Xe] 4f14 5d5 6s2	7.83
76		190.230	Osmium	Os	3,045	5,027	22.60		1803	8	[Xe] 4f14 5d6 6s2	8.44
77		192.217	Iridium	Ir	2,410	4,527	22.40		1803	9	[Xe] 4f14 5d7 6s2	8.97
78		195.078	Platinum	Pt	1,772	3,827	21.45		1735	10	[Xe] 4f14 5d9 6s1	8.96
79		196.967	Gold	Au	1,064	2,807	19.32		ancient	11	[Xe] 4f14 5d10 6s1	9.23
80		200.590	Mercury	Hg	-39	357	13.55		ancient	12	[Xe] 4f14 5d10 6s2	10.44
81		204.383	Thallium	Tl	303	1,457	11.85		1861	13	[Xe] 4f14 5d10 6s2 6p1	6.11
82		207.200	Lead	Pb	327	1,740	11.35		ancient	14	[Xe] 4f14 5d10 6s2 6p2	7.42
83		208.980	Bismuth	Bi	271	1,560	9.75		ancient	15	[Xe] 4f14 5d10 6s2 6p3	7.29
84	*	209.000	Polonium	Po	254	962	9.30		1898	16	[Xe] 4f14 5d10 6s2 6p4	8.42
85	*	210.000	Astatine	At	302	337	0.00		1940	17	[Xe] 4f14 5d10 6s2 6p5	9.30
86	*	222.000	Radon	Rn	-71	-62	9.73		1900	18	[Xe] 4f14 5d10 6s2 6p6	10.75
87	*	223.000	Francium	Fr	27	677	0.00		1939	1	[Rn] 7s1	4.07
88	*	226.000	Radium	Ra	700	1,737	5.50		1898	2	[Rn] 7s2	5.28
89	*	227.000	Actinium	Ac	1,050	3,200	10.07		1899	3	[Rn] 6d1 7s2	5.17
90		232.038	Thorium	Th	1,750	4,790	11.72		1829	102	[Rn] 6d2 7s2	6.31
91		231.036	Protactinium	Pa	1,568	0	15.40		1913	102	[Rn] 5f2 6d1 7s2	5.89
92		238.029	Uranium	U	1,132	3,818	18.95		1789	102	[Rn] 5f3 6d1 7s2	6.19
93	*	237.000	Neptunium	Np	640	3,902	20.20		1940	102	[Rn] 5f4 6d1 7s2	6.27
94	*	244.000	Plutonium	Pu	640	3,235	19.84		1940	102	[Rn] 5f6 7s2	6.03
95	*	243.000	Americium	Am	994	2,607	13.67		1944	102	[Rn] 5f7 7s2	5.97
96	*	247.000	Curium	Cm	1,340	0	13.50		1944	102		5.99
97	*	247.000	Berkelium	Bk	986	0	14.78		1949	102		6.20
98	*	251.000	Californium	Cf	900	0	15.10		1950	102		6.28
99	*	252.000	Einsteinium	Es	860	0	0.00		1952	102		6.42
100	*	257.000	Fermium	Fm	1,527	0	0.00		1952	102		6.50
101	*	258.000	Mendelevium	Md	0	0	0.00		1955	102		6.58
102	*	259.000	Nobelium	No	827	0	0.00		1958	102		6.65
103	*	262.000	Lawrencium	Lr	1,627	0	0.00		1961	102		4.90
104	*	261.000	Rutherfordium	Rf	0	0	0.00		1964	4		0.00
105	*	262.000	Dubnium	Db	0	0	0.00		1967	5		0.00
106	*	266.000	Seaborgium	Sg	0	0	0.00		1974	6		0.00
107	*	264.000	Bohrium	Bh	0	0	0.00		1981	7		0.00
108	*	277.000	Hassium	Hs	0	0	0.00		1984	8		0.00
109	*	268.000	Meitnerium	Mt	0	0	0.00		1982	9		0.00
No.		Atomic Weight	Name	Sym.	M.P. (°C)	B.P.  (°C)	Density* (g/cm3)	Earth crust (%)*	Discovery (Year)	Group*	Electron configuration	Ionization energy (eV)

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