Chemical Elements Periodic Table

Complete reference of all 118 chemical elements with atomic number, symbol, atomic mass, category, room-temperature phase, period and group.

Updated: just now

Atomic Number From To	Symbol	Element Name	Atomic Mass From To	Category	Phase at Room Temperature	Period From To	Group From To
1	H	Hydrogen	1.008	Nonmetal	Gas	1	1
2	He	Helium	4.0026	Noble gas	Gas	1	18
3	Li	Lithium	6.94	Alkali metal	Solid	2	1
4	Be	Beryllium	9.0122	Alkaline earth metal	Solid	2	2
5	B	Boron	10.81	Metalloid	Solid	2	13
6	C	Carbon	12.011	Nonmetal	Solid	2	14
7	N	Nitrogen	14.007	Nonmetal	Gas	2	15
8	O	Oxygen	15.999	Nonmetal	Gas	2	16
9	F	Fluorine	18.998	Halogen	Gas	2	17
10	Ne	Neon	20.18	Noble gas	Gas	2	18
11	Na	Sodium	22.99	Alkali metal	Solid	3	1
12	Mg	Magnesium	24.305	Alkaline earth metal	Solid	3	2
13	Al	Aluminium	26.982	Post-transition metal	Solid	3	13
14	Si	Silicon	28.085	Metalloid	Solid	3	14
15	P	Phosphorus	30.974	Nonmetal	Solid	3	15
16	S	Sulfur	32.06	Nonmetal	Solid	3	16
17	Cl	Chlorine	35.45	Halogen	Gas	3	17
18	Ar	Argon	39.948	Noble gas	Gas	3	18
19	K	Potassium	39.098	Alkali metal	Solid	4	1
20	Ca	Calcium	40.078	Alkaline earth metal	Solid	4	2
21	Sc	Scandium	44.956	Transition metal	Solid	4	3
22	Ti	Titanium	47.867	Transition metal	Solid	4	4
23	V	Vanadium	50.942	Transition metal	Solid	4	5
24	Cr	Chromium	51.996	Transition metal	Solid	4	6
25	Mn	Manganese	54.938	Transition metal	Solid	4	7
26	Fe	Iron	55.845	Transition metal	Solid	4	8
27	Co	Cobalt	58.933	Transition metal	Solid	4	9
28	Ni	Nickel	58.693	Transition metal	Solid	4	10
29	Cu	Copper	63.546	Transition metal	Solid	4	11
30	Zn	Zinc	65.38	Transition metal	Solid	4	12
31	Ga	Gallium	69.723	Post-transition metal	Solid	4	13
32	Ge	Germanium	72.63	Metalloid	Solid	4	14
33	As	Arsenic	74.922	Metalloid	Solid	4	15
34	Se	Selenium	78.971	Nonmetal	Solid	4	16
35	Br	Bromine	79.904	Halogen	Liquid	4	17
36	Kr	Krypton	83.798	Noble gas	Gas	4	18
37	Rb	Rubidium	85.468	Alkali metal	Solid	5	1
38	Sr	Strontium	87.62	Alkaline earth metal	Solid	5	2
39	Y	Yttrium	88.906	Transition metal	Solid	5	3
40	Zr	Zirconium	91.224	Transition metal	Solid	5	4
41	Nb	Niobium	92.906	Transition metal	Solid	5	5
42	Mo	Molybdenum	95.95	Transition metal	Solid	5	6
43	Tc	Technetium	98	Transition metal	Solid	5	7
44	Ru	Ruthenium	101.07	Transition metal	Solid	5	8
45	Rh	Rhodium	102.91	Transition metal	Solid	5	9
46	Pd	Palladium	106.42	Transition metal	Solid	5	10
47	Ag	Silver	107.87	Transition metal	Solid	5	11
48	Cd	Cadmium	112.41	Transition metal	Solid	5	12
49	In	Indium	114.82	Post-transition metal	Solid	5	13
50	Sn	Tin	118.71	Post-transition metal	Solid	5	14
51	Sb	Antimony	121.76	Metalloid	Solid	5	15
52	Te	Tellurium	127.6	Metalloid	Solid	5	16
53	I	Iodine	126.9	Halogen	Solid	5	17
54	Xe	Xenon	131.29	Noble gas	Gas	5	18
55	Cs	Caesium	132.91	Alkali metal	Solid	6	1
56	Ba	Barium	137.33	Alkaline earth metal	Solid	6	2
57	La	Lanthanum	138.91	Lanthanide	Solid	6
58	Ce	Cerium	140.12	Lanthanide	Solid	6
59	Pr	Praseodymium	140.91	Lanthanide	Solid	6
60	Nd	Neodymium	144.24	Lanthanide	Solid	6
61	Pm	Promethium	145	Lanthanide	Solid	6
62	Sm	Samarium	150.36	Lanthanide	Solid	6
63	Eu	Europium	151.96	Lanthanide	Solid	6
64	Gd	Gadolinium	157.25	Lanthanide	Solid	6
65	Tb	Terbium	158.93	Lanthanide	Solid	6
66	Dy	Dysprosium	162.5	Lanthanide	Solid	6
67	Ho	Holmium	164.93	Lanthanide	Solid	6
68	Er	Erbium	167.26	Lanthanide	Solid	6
69	Tm	Thulium	168.93	Lanthanide	Solid	6
70	Yb	Ytterbium	173.05	Lanthanide	Solid	6
71	Lu	Lutetium	174.97	Lanthanide	Solid	6	3
72	Hf	Hafnium	178.49	Transition metal	Solid	6	4
73	Ta	Tantalum	180.95	Transition metal	Solid	6	5
74	W	Tungsten	183.84	Transition metal	Solid	6	6
75	Re	Rhenium	186.21	Transition metal	Solid	6	7
76	Os	Osmium	190.23	Transition metal	Solid	6	8
77	Ir	Iridium	192.22	Transition metal	Solid	6	9
78	Pt	Platinum	195.08	Transition metal	Solid	6	10
79	Au	Gold	196.97	Transition metal	Solid	6	11
80	Hg	Mercury	200.59	Transition metal	Liquid	6	12
81	Tl	Thallium	204.38	Post-transition metal	Solid	6	13
82	Pb	Lead	207.2	Post-transition metal	Solid	6	14
83	Bi	Bismuth	208.98	Post-transition metal	Solid	6	15
84	Po	Polonium	209	Metalloid	Solid	6	16
85	At	Astatine	210	Halogen	Solid	6	17
86	Rn	Radon	222	Noble gas	Gas	6	18
87	Fr	Francium	223	Alkali metal	Solid	7	1
88	Ra	Radium	226	Alkaline earth metal	Solid	7	2
89	Ac	Actinium	227	Actinide	Solid	7
90	Th	Thorium	232.04	Actinide	Solid	7
91	Pa	Protactinium	231.04	Actinide	Solid	7
92	U	Uranium	238.03	Actinide	Solid	7
93	Np	Neptunium	237	Actinide	Solid	7
94	Pu	Plutonium	244	Actinide	Solid	7
95	Am	Americium	243	Actinide	Solid	7
96	Cm	Curium	247	Actinide	Solid	7
97	Bk	Berkelium	247	Actinide	Solid	7
98	Cf	Californium	251	Actinide	Solid	7
99	Es	Einsteinium	252	Actinide	Solid	7
100	Fm	Fermium	257	Actinide	Solid	7
101	Md	Mendelevium	258	Actinide	Solid	7
102	No	Nobelium	259	Actinide	Solid	7
103	Lr	Lawrencium	266	Actinide	Solid	7	3
104	Rf	Rutherfordium	267	Transition metal	Solid	7	4
105	Db	Dubnium	268	Transition metal	Solid	7	5
106	Sg	Seaborgium	269	Transition metal	Solid	7	6
107	Bh	Bohrium	270	Transition metal	Solid	7	7
108	Hs	Hassium	269	Transition metal	Solid	7	8
109	Mt	Meitnerium	278	Unknown	Solid	7	9
110	Ds	Darmstadtium	281	Unknown	Solid	7	10
111	Rg	Roentgenium	282	Unknown	Solid	7	11
112	Cn	Copernicium	285	Transition metal	Unknown	7	12
113	Nh	Nihonium	286	Unknown	Unknown	7	13
114	Fl	Flerovium	289	Unknown	Unknown	7	14
115	Mc	Moscovium	290	Unknown	Unknown	7	15
116	Lv	Livermorium	293	Unknown	Unknown	7	16
117	Ts	Tennessine	294	Unknown	Unknown	7	17
118	Og	Oganesson	294	Noble gas	Unknown	7	18