Nama Dan unsur Kimia

No. atom	Nama	Lambang	Periode, Golongan	Massa (g/Mol)	Massa jenis (g/cm³) pada 20°C	Titik lebur (°C)	Titik didih (°C)	Tahun penemuan	Penemu
1	Hidrogen	H	1; 1	1,00794(7)2 3 4	0,084 g/l	-259,1	-252,9	1766	Cavendish
2	Helium	He	1; 18	4,002602(2)2 4	0,17 g/l	-272,2	-268,9	1895	Ramsay dan Cleve
3	Litium	Li	2; 1	6,941(2)2 3 4 5	0,53	180,5	1317	1817	Arfwedson
4	Berilium	Be	2; 2	9,012182(3)	1,85	1278	2970	1797	Vauquelin
5	Boron	B	2; 13	10,811(7)2 3 4	2,46	2300	2550	1808	Davy dan Gay-Lussac
6	Karbon	C	2; 14	12,0107(8)2 4	3,51	3550	4827	prasejarah	tak diketahui
7	Nitrogen	N	2; 15	14,0067(2)2 4	1,17 g/l	-209,9	-195,8	1772	Rutherford
8	Oksigen	O	2; 16	15,9994(3)2 4	1,33 g/l	-218,4	-182,9	1774	Priestly dan Scheele
9	Fluor	F	2; 17	18,9984032(5)	1,58 g/l	-219,6	-188,1	1886	Moissan
10	Neon	Ne	2; 18	20,1797(6)2 3	0,84 g/l	-248,7	-246,1	1898	Ramsay dan Travers
11	Natrium	Na	3; 1	22,98976928(2)	0,97	97,8	892	1807	Davy
12	Magnesium	Mg	3; 2	24,3050(6)	1,74	648,8	1107	1755	Black
13	Alumunium	Al	3; 13	26,9815386(8)	2,70	660,5	2467	1825	Oersted
14	Silikon	Si	3; 14	28,0855(3)4	2,33	1410	2355	1824	Berzelius
15	Fosfor	P	3; 15	30,973762(2)	1,82	44 (P4)	280 (P4)	1669	Brand
16	Belerang	S	3; 16	32,065(5)2 4	2,06	113	444,7	prasejarah	tak diketahui
17	Klor	Cl	3; 17	35,453(2)2 3 4	2,95 g/l	-34,6	-101	1774	Scheele
18	Argon	Ar	3; 18	39,948(1)2 4	1,66 g/l	-189,4	-185,9	1894	Ramsay dan Rayleigh
19	Kalium	K	4; 1	39,0983(1)	0,86	63,7	774	1807	Davy
20	Kalsium	Ca	4; 2	40,078(4)2	1,54	839	1487	1808	Davy
21	Skandium	Sc	4; 3	44,955912(6)	2,99	1539	2832	1879	Nilson
22	Titanium	Ti	4; 4	47,867(1)	4,51	1660	3260	1791	Gregor dan Klaproth
23	Vanadium	V	4; 5	50,9415(1)	6,09	1890	3380	1801	del Río
24	Krom	Cr	4; 6	51,9961(6)	7,14	1857	2482	1797	Vauquelin
25	Mangan	Mn	4; 7	54,938045(5)	7,44	1244	2097	1774	Gahn
26	Besi	Fe	4; 8	55,845(2)	7,87	1535	2750	prasejarah	tak diketahui
27	Kobalt	Co	4; 9	58,933195(5)	8,89	1495	2870	1735	Brandt
28	Nikel	Ni	4; 10	58,6934(2)	8,91	1453	2732	1751	Cronstedt
29	Tembaga	Cu	4; 11	63,546(3)4	8,92	1083,5	2595	prasejarah	tak diketahui
30	Seng	Zn	4; 12	65,409(4)	7,14	419,6	907	prasejarah	tak diketahui
31	Galium	Ga	4; 13	69,723(1)	5,91	29,8	2403	1875	Lecoq de Boisbaudran
32	Germanium	Ge	4; 14	72,64(1)	5,32	937,4	2830	1886	Winkler
33	Arsen	As	4; 15	74,92160(2)	5,72	613	613 (subl,)	ca, 1250	Albertus Magnus
34	Selenium	Se	4; 16	78,96(3)4	4,82	217	685	1817	Berzelius
35	Brom	Br	4; 17	79,904(1)	3,14	-7,3	58,8	1826	Balard
36	Kripton	Kr	4; 18	83,798(2)2 3	3,48 g/l	-156,6	-152,3	1898	Ramsay dan Travers
37	Rubidium	Rb	5; 1	85,4678(3)2	1,53	39	688	1861	Bunsen dan Kirchhoff
38	Strontium	Sr	5; 2	87,62(1)2 4	2,63	769	1384	1790	Crawford
39	Itrium	Y	5; 3	88,90585(2)	4,47	1523	3337	1794	Gadolin
40	Zirkonium	Zr	5; 4	91,224(2)2	6,51	1852	4377	1789	Klaproth
41	Niobium	Nb	5; 5	92,906 38(2)	8,58	2468	4927	1801	Hatchett
42	Molibden	Mo	5; 6	95,94(2)2	10,28	2617	5560	1778	Scheele
43	Teknetium	Tc	5; 7	[98,9063]1	11,49	2172	5030	1937	Perrier dan Segrè
44	Ruthenium	Ru	5; 8	101,07(2)2	12,45	2310	3900	1844	Klaus
45	Rodium	Rh	5; 9	102,90550(2)	12,41	1966	3727	1803	Wollaston
46	Paladium	Pd	5; 10	106,42(1)2	12,02	1552	3140	1803	Wollaston
47	Perak	Ag	5; 11	107,8682(2)2	10,49	961,9	2212	prasejarah	tak diketahui
48	Kadmium	Cd	5; 12	112,411(8)2	8,64	321	765	1817	Strohmeyer dan Hermann
49	Indium	In	5; 13	114,818(3)	7,31	156,2	2080	1863	Reich dan Richter
50	Timah	Sn	5; 14	118,710(7)2	7,29	232	2270	prasejarah	tak diketahui
51	Antimon	Sb	5; 15	121,760(1)2	6,69	630,7	1750	prasejarah	tak diketahui
52	Telurium	Te	5; 16	127,60(3)2	6,25	449,6	990	1782	von Reichenstein
53	Yodium	I	5; 17	126,90447(3)	4,94	113,5	184,4	1811	Courtois
54	Xenon	Xe	5; 18	131,293(6)2 3	4,49 g/l	-111,9	-107	1898	Ramsay dan Travers
55	Sesium	Cs	6; 1	132,9054519(2)	1,90	28,4	690	1860	Kirchhoff dan Bunsen
56	Barium	Ba	6; 2	137,327(7)	3,65	725	1640	1808	Davy
57	Lantanum	La	6	138,90547(7)2	6,16	920	3454	1839	Mosander
58	Serium	Ce	6	140,116(1)2	6,77	798	3257	1803	von Hisinger dan Berzelius
59	Praseodimium	Pr	6	140,90765(2)	6,48	931	3212	1895	von Welsbach
60	Neodimium	Nd	6	144,242(3)2	7,00	1010	3127	1895	von Welsbach
61	Prometium	Pm	6	[146,9151]1	7,22	1080	2730	1945	Marinsky dan Glendenin
62	Samarium	Sm	6	150,36(2)2	7,54	1072	1778	1879	Lecoq de Boisbaudran
63	Europium	Eu	6	151,964(1)2	5,25	822	1597	1901	Demarçay
64	Gadolinium	Gd	6	157,25(3)2	7,89	1311	3233	1880	de Marignac
65	Terbium	Tb	6	158,92535(2)	8,25	1360	3041	1843	Mosander
66	Disprosium	Dy	6	162,500(1)2	8,56	1409	2335	1886	Lecoq de Boisbaudran
67	Holmium	Ho	6	164,93032(2)	8,78	1470	2720	1878	Soret
68	Erbium	Er	6	167,259(3)2	9,05	1522	2510	1842	Mosander
69	Tulium	Tm	6	168,93421(2)	9,32	1545	1727	1879	Cleve
70	Iterbium	Yb	6	173,04(3)2	6,97	824	1193	1878	de Marignac
71	Lutetium	Lu	6; 3	174,967(1)2	9,84	1656	3315	1907	Urbain
72	Hafnium	Hf	6; 4	178,49(2)	13,31	2150	5400	1923	Coster dan de Hevesy
73	Tantalum	Ta	6; 5	180,9479(1)	16,68	2996	5425	1802	Ekeberg
74	Tungsten	W	6; 6	183,84(1)	19,26	3407	5927	1783	Elhuyar
75	Renium	Re	6; 7	186,207(1)	21,03	3180	5627	1925	Noddack; Tacke dan Berg
76	Osmium	Os	6; 8	190,23(3)2	22,61	3045	5027	1803	Tennant
77	Iridium	Ir	6; 9	192,217(3)	22,65	2410	4130	1803	Tennant
78	Platina	Pt	6; 10	195,084(9)	21,45	1772	3827	1557	Scaliger
79	Emas	Au	6; 11	196,966569(4)	19,32	1064,4	2940	prasejarah	tak diketahui
80	Raksa	Hg	6; 12	200,59(2)	13,55	-38,9	356,6	prasejarah	tak diketahui
81	Talium	Tl	6; 13	204,3833(2)	11,85	303,6	1457	1861	Crookes
82	Timbal	Pb	6; 14	207,2(1)2 4	11,34	327,5	1740	prasejarah	tak diketahui
83	Bismut	Bi	6; 15	208,98040(1)	9,80	271,4	1560	1540	Geoffroy
84	Polonium	Po	6; 16	[208,9824]1	9,20	254	962	1898	Marie and Pierre Curie
85	Astatin	At	6; 17	[209,9871]1		302	337	1940	Corson dan MacKenzie
86	Radon	Rn	6; 18	[222,0176]1	9,23 g/l	-71	-61,8	1900	Dorn
87	Fransium	Fr	7; 1	[223,0197]1		27	677	1939	Perey
88	Radium	Ra	7; 2	[226,0254]1	5,50	700	1140	1898	Marie dan Pierre Curie
89	Aktinium	Ac	7	[227,0278]1	10,07	1047	3197	1899	Debierne
90	Torium	Th	7	232,03806(2)1 2	11,72	1750	4787	1829	Berzelius
91	Protaktinium	Pa	7	231,03588(2)1	15,37	1554	4030	1917	Soddy; Cranston dan Hahn
92	Uranium	U	7	238,02891(3)1 2 3	18,97	1132,4	3818	1789	Klaproth
93	Neptunium	Np	7	[237,0482]1	20,48	640	3902	1940	McMillan dan Abelson
94	Plutonium	Pu	7	[244,0642]1	19,74	641	3327	1940	Seaborg
95	Amerisium	Am	7	[243,0614]1	13,67	994	2607	1944	Seaborg
96	Curium	Cm	7	[247,0703]1	13,51	1340		1944	Seaborg
97	Berkelium	Bk	7	[247,0703]1	13,25	986		1949	Seaborg
98	Kalifornium	Cf	7	[251,0796]1	15,1	900		1950	Seaborg
99	Einsteinium	Es	7	[252,0829]1		860		1952	Seaborg
100	Fermium	Fm	7	[257,0951]1				1952	Seaborg
101	Mendelevium	Md	7	[258,0986]1				1955	Seaborg
102	Nobelium	No	7	[259,1009]1				1958	Seaborg
103	Lawrensium	Lr	7; 3	[260,1053]1				1961	Ghiorso
104	Rutherfordium	Rf	7; 4	[261,1087]1				1964/69	Flerov
105	Dubnium	Db	7; 5	[262,1138]1				1967/70	Flerov
106	Seaborgium	Sg	7; 6	[263,1182]1				1974	Flerov
107	Bohrium	Bh	7; 7	[262,1229]1				1976	Oganessian
108	Hassium	Hs	7; 8	[265]1				1984	GSI (*)
109	Meitnerium	Mt	7; 9	[266]1				1982	GSI
110	Darmstadtium	Ds	7; 10	[269]1				1994	GSI
111	Roentgenium	Rg	7; 11	[272]1				1994	GSI
112	Kopernisium	Cn	7; 12	[285]1				1996	GSI
113	Ununtrium	Uut	7; 13	[284]1				2004	JINR (*); LLNL (*)
114	Ununquadium	Uuq	7; 14	[289]1				1999	JINR
115	Ununpentium	Uup	7; 15	[288]1				2004	JINR; LLNL
116	Ununhexium	Uuh	7; 16	[292]1				1999	LBNL (*)
117	Ununseptium	Uus	7; 17	1				tak ditemukan
118	Ununoctium	Uuo	7; 18	1				tak ditemukan