Atomic Mass and Atomic Number of Elements (Periodic Table)

Periodic Table With Atomic Mass and Atomic Number/Wikimedia

An element can be defined as the species of atom having the same number of protons in their nuclei. Each element is represented by a symbol, made up of one or two alphabets. For example, an Carbon atom is represented by "C".

The number of proton in a nuclei is known as the atomic number whereas atomic mass is the mass of an atom and is numerically equivalent to the number of protons and neutrons in the atomic nuclei.

List of Elements by Atomic Numbers and Atomic Masses

Atomic Number	Element	Chemical Symbol	Atomic Mass
1	Hydrogen	H	1.008
2	Helium	He	4.002602
3	Lithium	Li	6.94
4	Beryllium	Be	9.0121831
5	Boron	B	10.81
6	Carbon	C	12.011
7	Nitrogen	N	14.007
8	Oxygen	O	15.999
9	Fluorine	F	18.998403163
10	Neon	Ne	20.1797
11	Sodium	Na	22.98976928
12	Magnesium	Mg	24.305
13	Aluminum	Al	26.9815384
14	Silicon	Si	28.085
15	Phosphorus	P	30.973761998
16	Sulfur	S	32.06
17	Chloride	Cl	35.45
18	Argon	Ar	39.948
19	Potassium	K	39.0983
20	Calcium	Ca	40.078
21	Scandium	Sc	44.955908
22	Titanium	Ti	47.867
23	Vanadium	V	50.9415
24	Chromium	Cr	51.9961
25	Manganese	Mn	54.938043
26	Iron	Fe	55.845
27	Cobalt	Co	58.933194
28	Nickel	Ni	58.6934
29	Copper	Cu	63.546
30	Zinc	Zn	65.38
31	Gallium	Ga	69.723
32	Germanium	Ge	72.630
33	Arsenic	As	74.921595
34	Selenium	Se	78.971
35	Bromine	Br	79.904
36	Krypton	Kr	83.798
37	Rubidium	Rb	85.4678
38	Strontium	Sr	87.62
39	Yttrium	Y	88.90584
40	Zirconium	Zr	91.224
41	Niobium	Nb	92.90637
42	Molybdenum	Mo	95.95
43	Technetium	Tc	[98]
44	Ruthenium	Ru	101.07
45	Rhodium	Rh	102.90549
46	Palladium	Pd	106.42
47	Silver	Ag	107.8682
48	Cadmium	Cd	112.414
49	Indium	In	114.818
50	Tin	Sn	118.710
51	Antimony	Sb	121.760
52	Tellurium	Te	127.60
53	Iodine	I	126.90447
54	Xenon	Xe	131.293
55	Cesium	Cs	132.90545196
56	Barium	Ba	137.327
57	Lanthanum	La	138.90547
58	Cerium	Ce	140.116
59	Praseodymium	Pr	140.90766
60	Neodymium	Nd	144.242
61	Promethium	Pm	[145]
62	Samarium	Sm	150.36
63	Europium	Eu	151.964
64	Gadolinium	Gd	157.25
65	Terbium	Tb	158.925354
66	Dysprosium	Dy	162.500
67	Holmium	Ho	164.930328
68	Erbium	Er	167.259
69	Thulium	Tm	168.934218
70	Ytterbium	Yb	173.045
71	Lutetium	Lu	174.9668
72	Hafnium	Hf	178.49
73	Tantalum	Ta	180.94788
74	Tungsten	W	183.84
75	Rhenium	Re	186.207
76	Osmium	Os	190.23
77	Iridium	Ir	192.217
78	Platinum	Pt	195.084
79	Gold	Au	196.966570
80	Mercury	Hg	200.592
81	Thallium	Tl	204.38
82	Lead	Pb	207.2
83	Bismuth	Bi	208.98040
84	Polonium	Po	[209]
85	Astatine	At	[210]
86	Radon	Rn	[222]
87	Francium	Fr	[223]
88	Radium	Ra	[226]
89	Actinium	Ac	[227]
90	Thorium	Th	232.0377
91	Protactinium	Pa	231.03588
92	Uranium	U	238.02891
93	Neptunium	Np	[237]
94	Plutonium	Pu	[244]
95	Americium	Am	[243]
96	Curium	Cm	[247]
97	Berkelium	Bk	[247]
98	Californium	Cf	[251]
99	Einsteinium	Es	[252]
100	Fermium	Fm	[257]
101	Mendelevium	Md	[258]
102	Nobelium	No	[259]
103	Lawrencium	Lr	[266]
104	Rutherfordium	Rf	[267]
105	Dubnium	Db	[268]
106	Seaborgium	Sg	[269]
107	Bohrium	Bh	[270]
108	Hassium	Hs	[270]
109	Meitnerium	Mt	[278]
110	Darmstadtium	Ds	[281]
111	Roentgenium	Rg	[282]
112	Copernicium	Cn	[285]
113	Nihonium	Nh	[286]
114	Flerovium	Fl	[289]
115	Moscovium	Mc	[290]
116	Livermorium	Lv	[293]
117	Tennessine	Ts	[294]
118	Oganesson	Og	[294]