Here is a list of the elements sorted by atomic number.
Start studying Periodic Table of Elements 1-20 atomic numbers. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Element name | Element symbol | Atomic number |
---|---|---|
Hydrogen | H | 1 |
Helium | He | 2 |
Lithium | Li | 3 |
Beryllium | Be | 4 |
Boron | B | 5 |
Carbon | C | 6 |
Nitrogen | N | 7 |
Oxygen | O | 8 |
Fluorine | F | 9 |
Neon | Ne | 10 |
Sodium | Na | 11 |
Magnesium | Mg | 12 |
Aluminium | Al | 13 |
Silicon | Si | 14 |
Phosphorus | P | 15 |
Sulfur | S | 16 |
Chlorine | Cl | 17 |
Argon | Ar | 18 |
Potassium | K | 19 |
Calcium | Ca | 20 |
Scandium | Sc | 21 |
Titanium | Ti | 22 |
Vanadium | V | 23 |
Chromium | Cr | 24 |
Manganese | Mn | 25 |
Iron | Fe | 26 |
Cobalt | Co | 27 |
Nickel | Ni | 28 |
Copper | Cu | 29 |
Zinc | Zn | 30 |
Gallium | Ga | 31 |
Germanium | Ge | 32 |
Arsenic | As | 33 |
Selenium | Se | 34 |
Bromine | Br | 35 |
Krypton | Kr | 36 |
Rubidium | Rb | 37 |
Strontium | Sr | 38 |
Yttrium | Y | 39 |
Zirconium | Zr | 40 |
Niobium | Nb | 41 |
Molybdenum | Mo | 42 |
Technetium | Tc | 43 |
Ruthenium | Ru | 44 |
Rhodium | Rh | 45 |
Palladium | Pd | 46 |
Silver | Ag | 47 |
Cadmium | Cd | 48 |
Indium | In | 49 |
Tin | Sn | 50 |
Antimony | Sb | 51 |
Tellurium | Te | 52 |
Iodine | I | 53 |
Xenon | Xe | 54 |
Caesium | Cs | 55 |
Barium | Ba | 56 |
Lanthanum | La | 57 |
Cerium | Ce | 58 |
Praseodymium | Pr | 59 |
Neodymium | Nd | 60 |
Promethium | Pm | 61 |
Samarium | Sm | 62 |
Europium | Eu | 63 |
Gadolinium | Gd | 64 |
Terbium | Tb | 65 |
Dysprosium | Dy | 66 |
Holmium | Ho | 67 |
Erbium | Er | 68 |
Thulium | Tm | 69 |
Ytterbium | Yb | 70 |
Lutetium | Lu | 71 |
Hafnium | Hf | 72 |
Tantalum | Ta | 73 |
Tungsten | W | 74 |
Rhenium | Re | 75 |
Osmium | Os | 76 |
Iridium | Ir | 77 |
Platinum | Pt | 78 |
Gold | Au | 79 |
Mercury | Hg | 80 |
Thallium | Tl | 81 |
Lead | Pb | 82 |
Bismuth | Bi | 83 |
Polonium | Po | 84 |
Astatine | At | 85 |
Radon | Rn | 86 |
Francium | Fr | 87 |
Radium | Ra | 88 |
Actinium | Ac | 89 |
Thorium | Th | 90 |
Protactinium | Pa | 91 |
Uranium | U | 92 |
Neptunium | Np | 93 |
Plutonium | Pu | 94 |
Americium | Am | 95 |
Curium | Cm | 96 |
Berkelium | Bk | 97 |
Californium | Cf | 98 |
Einsteinium | Es | 99 |
Fermium | Fm | 100 |
Mendelevium | Md | 101 |
Nobelium | No | 102 |
Lawrencium | Lr | 103 |
Rutherfordium | Rf | 104 |
Dubnium | Db | 105 |
Seaborgium | Sg | 106 |
Bohrium | Bh | 107 |
Hassium | Hs | 108 |
Meitnerium | Mt | 109 |
Darmstadtium | Ds | 110 |
Roentgenium | Rg | 111 |
Copernicium | Cn | 112 |
Ununtrium | Uut | 113 |
Flerovium | Fl | 114 |
Ununpentium | Uup | 115 |
Livermorium | Lv | 116 |
Ununseptium | Uus | 117 |
Ununoctium | Uuo | 118 |
1 To 20 Atomic Number With Valency
List of first 50 elements of the periodic table by atomic number including the chemical symbol and the atomic weight. You can print the list of elements by hitting the print button below.
- Start studying Periodic Table of Elements 1-20 atomic numbers. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
- This is a list of the 118 chemical elements which have been identified as of 2021. A chemical element, often simply called an element, is a species of atoms which all have the same number of protons in their atomic nuclei (i.e., the same atomic number, or Z).
- Chemical elements listed by atomic number The elemenents of the periodic table sorted by atomic number. Click on any element's name for further chemical properties, environmental data or health effects. This list contains the 118 elements of chemistry.
- As of 2021, all elements with atomic numbers 1 to 118 have been observed. Synthesis of new elements is accomplished by bombarding target atoms of heavy elements with ions, such that the sum of the atomic numbers of the target and ion elements equals the atomic number of the element being created.
1 To 20 Atomic Numbers
Atomic Number | Chemical Symbol | Element Name | Atomic Weight (u) |
---|---|---|---|
1 | H | Hydrogen | 1.008 |
2 | He | Helium | 4.002602 |
3 | Li | Lithium | 6.94 |
4 | Be | Beryllium | 9.0121831 |
5 | B | Boron | 10.81 |
6 | C | Carbon | 12.011 |
7 | N | Nitrogen | 14.007 |
8 | O | Oxygen | 15.999 |
9 | F | Fluorine | 18.99840316 |
10 | Ne | Neon | 20.1797 |
11 | Na | Sodium | 22.98976928 |
12 | Mg | Magnesium | 24.305 |
13 | Al | Aluminium | 26.9815385 |
14 | Si | Silicon | 28.085 |
15 | P | Phosphorus | 30.973762 |
16 | S | Sulfur | 32.06 |
17 | Cl | Chlorine | 35.45 |
18 | Ar | Argon | 39.948 |
19 | K | Potassium | 39.0983 |
20 | Ca | Calcium | 40.078 |
21 | Sc | Scandium | 44.955908 |
22 | Ti | Titanium | 47.867 |
23 | V | Vanadium | 50.9415 |
24 | Cr | Chromium | 51.9961 |
25 | Mn | Manganese | 54.938044 |
26 | Fe | Iron | 55.845 |
27 | Co | Cobalt | 58.933194 |
28 | Ni | Nickel | 58.6934 |
29 | Cu | Copper | 63.546 |
30 | Zn | Zinc | 65.38 |
31 | Ga | Gallium | 69.723 |
32 | Ge | Germanium | 72.63 |
33 | As | Arsenic | 74.921595 |
34 | Se | Selenium | 78.971 |
35 | Br | Bromine | 79.904 |
36 | Kr | Krypton | 83.798 |
37 | Rb | Rubidium | 85.4678 |
38 | Sr | Strontium | 87.62 |
39 | Y | Yttrium | 88.90584 |
40 | Zr | Zirconium | 91.224 |
41 | Nb | Niobium | 92.90637 |
42 | Mo | Molybdenum | 95.95 |
43 | Tc | Technetium | 98 |
44 | Ru | Ruthenium | 101.07 |
45 | Rh | Rhodium | 102.9055 |
46 | Pd | Palladium | 106.42 |
47 | Ag | Silver | 107.8682 |
48 | Cd | Cadmium | 112.414 |
49 | In | Indium | 114.818 |
50 | Sn | Tin | 118.71 |