Periodic Table of Elements

Name	No.	Atomic Weight	Sym.	Melting Point ( °C )	Boiling Point ( °C )	Density* (g/cm³)	Earth crust ( % )*	Discovery (Year)	Electron config.
Actinium	89	227	Ac	1050	3200	10.07		1899	[Rn] 6d¹ 7s²
Aluminum	13	26.9815	Al	660	2467	2.7	8.07	1825	[Ne] 3s² 3p¹
Americium	95	243	Am	994	2607	13.67		1944	[Rn] 5f⁷ 7s²
Antimony	51	121.76	Sb	630	1750	6.68		ancient	[Kr] 4d¹⁰ 5s² 5p³
Argon	18	39.948	Ar	-189	-186			1894	[Ne] 3s² 3p⁶
Arsenic	33	74.9216	As	81	613	5.72		ancient	[Ar] 3d¹⁰ 4s² 4p³
Astatine	85	210	At	302	337			1940	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵
Barium	56	137.327	Ba	725	1140	3.59	0.05	1808	[Xe] 6s²
Berkelium	97	247	Bk	986		14.78		1949
Beryllium	4	9.0122	Be	1278	2970	1.85		1797	[He] 2s²
Bismuth	83	208.9804	Bi	271	1560	9.75		ancient	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³
Bohrium	107	264	Bh					1981
Boron	5	10.811	B	2300	2550	2.34		1808	[He] 2s² 2p¹
Bromine	35	79.904	Br	-7	59	3.12		1826	[Ar] 3d¹⁰ 4s² 4p⁵
Cadmium	48	112.411	Cd	321	765	8.65		1817	[Kr] 4d¹⁰ 5s²
Calcium	20	40.078	Ca	839	1484	1.55	3.65	1808	[Ar] 4s²
Californium	98	251	Cf	900		15.1		1950
Carbon	6	12.0107	C	3500	4827	2.26	0.094	ancient	[He] 2s² 2p²
Cerium	58	140.116	Ce	795	3257	6.77		1803	[Xe] 4f¹ 5d¹ 6s²
Cesium	55	132.9055	Cs	29	678	1.87		1860	[Xe] 6s¹
Chlorine	17	35.453	Cl	-101	-35	3.21	0.045	1774	[Ne] 3s² 3p⁵
Chromium	24	51.9961	Cr	1857	2672	7.19	0.035	1797	[Ar] 3d⁵ 4s¹
Cobalt	27	58.9332	Co	1495	2870	8.9		1735	[Ar] 3d⁷ 4s²
Copper	29	63.546	Cu	1083	2567	8.96		ancient	[Ar] 3d¹⁰ 4s¹
Curium	96	247	Cm	1340		13.5		1944
Dubnium	105	262	Db					1967
Dysprosium	66	162.5	Dy	1412	2562	8.55		1886	[Xe] 4f¹⁰ 6s²
Einsteinium	99	252	Es	860				1952
Erbium	68	167.259	Er	1522	2510	9.07		1842	[Xe] 4f¹² 6s²
Europium	63	151.964	Eu	822	1597	5.24		1901	[Xe] 4f⁷ 6s²
Fermium	100	257	Fm	1527				1952
Fluorine	9	18.9984	F	-220	-188	1.7	0.029	1886	[He] 2s² 2p⁵
Francium	87	223	Fr	27	677			1939	[Rn] 7s¹
Gadolinium	64	157.25	Gd	1311	3233	7.9		1880	[Xe] 4f⁷ 5d¹ 6s²
Gallium	31	69.723	Ga	30	2403	5.91		1875	[Ar] 3d¹⁰ 4s² 4p¹
Germanium	32	72.64	Ge	937	2830	5.32		1886	[Ar] 3d¹⁰ 4s² 4p²
Gold	79	196.9665	Au	1064	2807	19.32		ancient	[Xe] 4f¹⁴ 5d¹⁰ 6s¹
Hafnium	72	178.49	Hf	2150	5400	13.31		1923	[Xe] 4f¹⁴ 5d² 6s²
Hassium	108	277	Hs					1984
Helium	2	4.0026	He	-272	-269			1895	1s²
Holmium	67	164.9303	Ho	1470	2720	8.8		1867	[Xe] 4f¹¹ 6s²
Hydrogen	1	1.0079	H	-259	-253	0.09	0.14	1776	1s¹
Indium	49	114.818	In	157	2000	7.31		1863	[Kr] 4d¹⁰ 5s² 5p¹
Iodine	53	126.9045	I	114	184	4.93		1811	[Kr] 4d¹⁰ 5s² 5p⁵
Iridium	77	192.217	Ir	2410	4527	22.4		1803	[Xe] 4f¹⁴ 5d⁷ 6s²
Iron	26	55.845	Fe	1535	2750	7.87	5.05	ancient	[Ar] 3d⁶ 4s²
Krypton	36	83.8	Kr	-157	-153			1898	[Ar] 3d¹⁰ 4s² 4p⁶
Lanthanum	57	138.9055	La	920	3469	6.15		1839	[Xe] 5d¹ 6s²
Lawrencium	103	262	Lr	1627				1961
Lead	82	207.2	Pb	327	1740	11.35		ancient	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p²
Lithium	3	6.941	Li	180	1347	0.53		1817	[He] 2s¹
Lutetium	71	174.967	Lu	1656	3315	9.84		1907	[Xe] 4f¹⁴ 5d¹ 6s²
Magnesium	12	24.305	Mg	639	1090	1.74	2.08	1755	[Ne] 3s²
Manganese	25	54.938	Mn	1245	1962	7.43	0.09	1774	[Ar] 3d⁵ 4s²
Meitnerium	109	268	Mt					1982
Mendelevium	101	258	Md					1955
Mercury	80	200.59	Hg	-39	357	13.55		ancient	[Xe] 4f¹⁴ 5d¹⁰ 6s²
Molybdenum	42	95.94	Mo	2617	4612	10.22		1781	[Kr] 4d⁵ 5s¹
Neodymium	60	144.24	Nd	1010	3127	7.01		1885	[Xe] 4f⁴ 6s²
Neon	10	20.1797	Ne	-249	-246			1898	[He] 2s² 2p⁶
Neptunium	93	237	Np	640	3902	20.2		1940	[Rn] 5f⁴ 6d¹ 7s²
Nickel	28	58.6934	Ni	1453	2732	8.9	0.019	1751	[Ar] 3d⁸ 4s²
Niobium	41	92.9064	Nb	2468	4927	8.57		1801	[Kr] 4d⁴ 5s¹
Nitrogen	7	14.0067	N	-210	-196	1.25		1772	[He] 2s² 2p³
Nobelium	102	259	No	827				1958
Osmium	76	190.23	Os	3045	5027	22.6		1803	[Xe] 4f¹⁴ 5d⁶ 6s²
Oxygen	8	15.9994	O	-218	-183	1.43	46.71	1774	[He] 2s² 2p⁴
Palladium	46	106.42	Pd	1552	2927	12.02		1803	[Kr] 4d¹⁰
Phosphorus	15	30.9738	P	44	280	1.82	0.13	1669	[Ne] 3s² 3p³
Platinum	78	195.078	Pt	1772	3827	21.45		1735	[Xe] 4f¹⁴ 5d⁹ 6s¹
Plutonium	94	244	Pu	640	3235	19.84		1940	[Rn] 5f⁶ 7s²
Polonium	84	209	Po	254	962	9.3		1898	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴
Potassium	19	39.0983	K	64	774	0.86	2.58	1807	[Ar] 4s¹
Praseodymium	59	140.9077	Pr	935	3127	6.77		1885	[Xe] 4f³ 6s²
Promethium	61	145	Pm	1100	3000	7.3		1945	[Xe] 4f⁵ 6s²
Protactinium	91	231.0359	Pa	1568		15.4		1913	[Rn] 5f² 6d¹ 7s²
Radium	88	226	Ra	700	1737	5.5		1898	[Rn] 7s²
Radon	86	222	Rn	-71	-62			1900	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁶
Rhenium	75	186.207	Re	3180	5627	21.04		1925	[Xe] 4f¹⁴ 5d⁵ 6s²
Rhodium	45	102.9055	Rh	1966	3727	12.41		1803	[Kr] 4d⁸ 5s¹
Rubidium	37	85.4678	Rb	39	688	1.63		1861	[Kr] 5s¹
Ruthenium	44	101.07	Ru	2250	3900	12.37		1844	[Kr] 4d⁷ 5s¹
Rutherfordium	104	261	Rf					1964
Samarium	62	150.36	Sm	1072	1900	7.52		1879	[Xe] 4f⁶ 6s²
Scandium	21	44.9559	Sc	1539	2832	2.99		1879	[Ar] 3d¹ 4s²
Seaborgium	106	266	Sg					1974
Selenium	34	78.96	Se	217	685	4.79		1817	[Ar] 3d¹⁰ 4s² 4p⁴
Silicon	14	28.0855	Si	1410	2355	2.33	27.69	1824	[Ne] 3s² 3p²
Silver	47	107.8682	Ag	962	2212	10.5		ancient	[Kr] 4d¹⁰ 5s¹
Sodium	11	22.9897	Na	98	883	0.97	2.75	1807	[Ne] 3s¹
Strontium	38	87.62	Sr	769	1384	2.54		1790	[Kr] 5s²
Sulfur	16	32.065	S	113	445	2.07	0.052	ancient	[Ne] 3s² 3p⁴
Tantalum	73	180.9479	Ta	2996	5425	16.65		1802	[Xe] 4f¹⁴ 5d³ 6s²
Technetium	43	98	Tc	2200	4877	11.5		1937	[Kr] 4d⁵ 5s²
Tellurium	52	127.6	Te	449	990	6.24		1783	[Kr] 4d¹⁰ 5s² 5p⁴
Terbium	65	158.9253	Tb	1360	3041	8.23		1843	[Xe] 4f⁹ 6s²
Thallium	81	204.3833	Tl	303	1457	11.85		1861	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹
Thorium	90	232.0381	Th	1750	4790	11.72		1829	[Rn] 6d² 7s²
Thulium	69	168.9342	Tm	1545	1727	9.32		1879	[Xe] 4f¹³ 6s²
Tin	50	118.71	Sn	232	2270	7.31		ancient	[Kr] 4d¹⁰ 5s² 5p²
Titanium	22	47.867	Ti	1660	3287	4.54	0.62	1791	[Ar] 3d² 4s²
Tungsten	74	183.84	W	3410	5660	19.35		1783	[Xe] 4f¹⁴ 5d⁴ 6s²
Uranium	92	238.0289	U	1132	3818	18.95		1789	[Rn] 5f³ 6d¹ 7s²
Vanadium	23	50.9415	V	1890	3380	6.11		1830	[Ar] 3d³ 4s²
Xenon	54	131.293	Xe	-112	-108			1898	[Kr] 4d¹⁰ 5s² 5p⁶
Ytterbium	70	173.04	Yb	824	1466	6.9		1878	[Xe] 4f¹⁴ 6s²
Yttrium	39	88.9059	Y	1523	3337	4.47		1794	[Kr] 4d¹ 5s²
Zinc	30	65.39	Zn	420	907	7.13		ancient	[Ar] 3d¹⁰ 4s²
Zirconium	40	91.224	Zr	1852	4377	6.51	0.025	1789	[Kr] 4d² 5s²
Name	No.	Atomic Weight	Sym.	M.P. ( °C )	B.P. ( °C )	Density* (g/cm³)	Earth crust ( % )*	Discovery (Year)	Electron configuration

Dmitri Mendeleev (1834 -
1907)
Dmitri Mendeleev
formulated a periodic
table similar to the one we
use today. Elements were
grouped according to
recurring trends in their
properties.

Joseph Louis Gay-Lussac
(1778 - 1850)
Gay-Lussac was a French
chemist and physicist
known best for his work
with gases and the
composition of the Earth's
atmosphere. He is credited
with the discovery of
boron. His work with
measuring alcohol and
water gave us the
measure 'degrees Gay
Lussac', which is still used
in many countries as a
measure of alcohol
content in drinks.

Marie Sklodowska Curie
(1867–1934)
Marie Sklodowska Curie
was a Polish-born French
scientist. She won the
Nobel Prize twice and was
famous for her work on
radioactivity.

Ernest Rutherford
(1871–1937)
Ernest Rutherford was a
British physicist who did
research that became the
basis for modern nuclear
physics. He was awarded
the Nobel Prize for
Chemistry in 1908.

Robert Boyle (1627 -
1691)
Robert Boyle was an
Irish-born scientist best
known for Boyle's Law of
Ideal Gases. He also was
a founding fellow of the
Royal Society of London
and an early supporter of
the atomic nature of
matter.

Sir Joseph John (J. J.)
Thomson (1884–1918)
J.J. Thomson discovered
the electron while
studying the electricity in a
cathode ray tube (CRT).