Everything in the universe is composed of basic elements, and at their smallest level, these elements are atoms.
- There are a total of 118 elements in the modern periodic table, out of which 98 are found in nature; the rest are chemically synthesized in laboratories.
- An atom of any element is composed of electrons, protons, and neutrons and possesses a different property from the other.

The tabulated view of all 118 elements and their symbols along with their atomic number, element name, atomic mass, and number of protons and neutrons is described below:
Atomic Number | Symbol | Element Name | Atomic Mass | Number of Protons | Number of Neutrons |
|---|---|---|---|---|---|
1 | H | Hydrogen | 1.008 | 1 | 0 |
2 | He | 4.0026 | 2 | 2 | |
3 | Li | Lithium | 6.94 | 3 | 4 |
4 | Be | Beryllium | 9.0122 | 4 | 5 |
5 | B | Boron | 10.81 | 5 | 6 |
6 | C | 12.011 | 6 | 6 | |
7 | N | 14.007 | 7 | 7 | |
8 | O | 15.999 | 8 | 8 | |
9 | F | Fluorine | 18.998 | 9 | 10 |
10 | Ne | Neon | 20.180 | 10 | 10 |
11 | Na | Sodium | 22.990 | 11 | 12 |
12 | Mg | Magnesium | 24.305 | 12 | 12 |
13 | Al | Aluminum | 26.982 | 13 | 14 |
14 | Si | Silicon | 28.095 | 14 | 14 |
15 | P | 30.974 | 15 | 16 | |
16 | S | Sulphur | 32.06 | 16 | 16 |
17 | Cl | 35.45 | 17 | 18 | |
18 | Ar | Argon | 39.948 | 18 | 22 |
19 | K | Potassium | 39.098 | 19 | 20 |
20 | Ca | Calcium | 40.078 | 20 | 20 |
21 | Sc | Scandium | 44.956 | 21 | 24 |
22 | Ti | Titanium | 47.867 | 22 | 26 |
23 | V | Vanadium | 50.942 | 23 | 28 |
24 | Cr | Chromium | 51.996 | 24 | 28 |
25 | Mn | Manganese | 54.938 | 25 | 30 |
26 | Fe | Iron | 55.845 | 26 | 30 |
27 | Co | Cobalt | 58.933 | 27 | 32 |
28 | Ni | Nickle | 58.693 | 28 | 31 |
29 | Cu | 63.546 | 29 | 35 | |
30 | Zn | 65.38 | 30 | 35 | |
31 | Ga | Gallium | 69.723 | 31 | 39 |
32 | Ge | Germanium | 72.630 | 32 | 41 |
33 | As | Arsenic | 74.922 | 33 | 42 |
34 | Se | Selenium | 78.971 | 34 | 45 |
35 | Br | Bromine | 79.904 | 35 | 45 |
36 | Kr | Krypton | 83.798 | 36 | 48 |
37 | Rb | Rubidium | 85.468 | 37 | 48 |
38 | Sr | Strontium | 87.62 | 38 | 50 |
39 | Y | Yttrium | 88.906 | 39 | 50 |
40 | Zr | Zirconium | 91.224 | 40 | 51 |
41 | Nb | Niobium | 92.906 | 41 | 52 |
42 | Mo | Molybdenum | 95.95 | 42 | 53 |
43 | Tc | Technetium | 98 | 43 | 55 |
44 | Ru | Ruthenium | 101.07 | 44 | 57 |
45 | Rh | Rhodium | 102.9055 | 45 | 58 |
46 | Pd | Palladium | 106.42 | 46 | 60 |
47 | Ag | Silver | 107.8682 | 47 | 61 |
48 | Cd | Cadmium | 112.411 | 48 | 64 |
49 | In | Indium | 114.818 | 49 | 66 |
50 | Sn | Tin | 118.71 | 50 | 69 |
51 | Sb | Antimony | 121.76 | 51 | 71 |
52 | Te | Tellurium | 127.6 | 52 | 76 |
53 | I | Iodine | 126.9045 | 53 | 74 |
54 | Xe | Xenon | 131.293 | 54 | 77 |
55 | Cs | Cesium | 132.9055 | 55 | 78 |
56 | Ba | Barium | 137.327 | 56 | 81 |
57 | La | Lanthanum | 138.9055 | 57 | 82 |
58 | Ce | Cerium | 140.116 | 58 | 82 |
59 | Pr | Praseodymium | 140.9077 | 59 | 82 |
60 | Nd | Neodymium | 144.24 | 60 | 84 |
61 | Pm | Promethium | 145 | 61 | 84 |
62 | Sm | Samarium | 150.36 | 62 | 88 |
63 | Eu | Europium | 151.964 | 63 | 89 |
64 | Gd | Gadolinium | 157.25 | 64 | 93 |
65 | Tb | Terbium | 158.9253 | 65 | 94 |
66 | Dy | Dysprosium | 162.5 | 66 | 97 |
67 | Ho | Holmium | 164.9303 | 67 | 98 |
68 | Er | Erbium | 167.259 | 68 | 99 |
69 | Tm | Thulium | 168.9342 | 69 | 100 |
70 | Yb | Ytterbium | 173.04 | 70 | 103 |
71 | Lu | Lutetium | 174.967 | 71 | 104 |
72 | Hf | Hafnium | 178.49 | 72 | 106 |
73 | Ta | Tantalum | 180.9479 | 73 | 108 |
74 | W | Tungsten | 183.84 | 74 | 110 |
75 | Re | Rhenium | 186.207 | 75 | 111 |
76 | Os | Osmium | 190.23 | 76 | 114 |
77 | Ir | Iridium | 196.9665 | 77 | 115 |
78 | Pt | Platinum | 192.217 | 78 | 117 |
79 | Au | 195.078 | 79 | 118 | |
80 | Hg | Mercury | 200.59 | 80 | 121 |
81 | Tl | Thallium | 204.3833 | 81 | 123 |
82 | Pb | Lead | 207.2 | 82 | 125 |
83 | Bi | Bismuth | 208.9804 | 83 | 126 |
84 | Po | Polonium | 209 | 84 | 125 |
85 | At | Astatine | 210 | 85 | 125 |
86 | Rn | Radon | 222 | 86 | 136 |
87 | Fr | Francium | 223 | 87 | 136 |
88 | Ra | Radium | 226 | 88 | 138 |
89 | Ac | Actinium | 227 | 89 | 138 |
90 | Th | Thorium | 232.0381 | 90 | 142 |
91 | P | Protactinium | 231.0359 | 91 | 140 |
92 | U | Uranium | 238.0289 | 92 | 146 |
93 | Np | Neptunium | 237 | 93 | 144 |
94 | Pu | Plutonium | 244 | 94 | 150 |
95 | Am | Americium | 243 | 95 | 148 |
96 | Cm | Curium | 247 | 96 | 151 |
97 | Bk | Berkelium | 247 | 97 | 150 |
98 | Cf | Californium | 251 | 98 | 153 |
99 | Es | Einsteinium | 252 | 99 | 153 |
100 | Fm | Fermium | 257 | 100 | 157 |
101 | Md | Mendelevium | 258 | 101 | 157 |
102 | No | Nobelium | 259 | 102 | 157 |
103 | Lr | Lawrencium | 262 | 103 | 159 |
104 | Rf | Rutherfordium | 261 | 104 | 163 |
105 | Db | Dubnium | 262 | 105 | 163 |
106 | Sg | Seaborgium | 266 | 106 | 165 |
107 | Bh | Bohrium | 264 | 107 | 163 |
108 | Hs | Hassium | 277 | 108 | 169 |
109 | Mt | Meitnerium | 268 | 109 | 167 |
110 | Ds | Darmstadtium | 261.9 | 110 | 171 |
111 | Rg | Roentgenium | 271.8 | 111 | 169 |
112 | Cn | Copernicium | 285 | 112 | 173 |
113 | Nh | Nihonium | 286 | 113 | 171 |
114 | FL | Flerovium | 289 | 114 | 175 |
115 | Mc | Moscovium | 290.196 | 115 | 173 |
116 | Lv | Livermorium | 293 | 116 | 177 |
117 | Ts | Tennessee | 294 | 117 | 177 |
118 | Og | Oganesson | 294 | 118 | 176 |