chemicalelements.info

Properties

Atomic NumberAtomic WeightDensityMelting PointBoiling Point
Value Gradient:
Color Gradient:

Atomic Number

Atomic number, usually denoted Z, is the number of protons in the nucleus of the element's atoms. Hydrogen, the smallest atom, has only one proton. Oganesson, which is the largest, has 118.

Atomic Number Values

ElementAtomic Number
Hydrogen1
Helium2
Lithium3
Beryllium4
Boron5
Carbon6
Nitrogen7
Oxygen8
Fluorine9
Neon10
Sodium11
Magnesium12
Aluminium13
Silicon14
Phosphorus15
Sulfur16
Chlorine17
Argon18
Potassium19
Calcium20
Scandium21
Titanium22
Vanadium23
Chromium24
Manganese25
Iron26
Cobalt27
Nickel28
Copper29
Zinc30
Gallium31
Germanium32
Arsenic33
Selenium34
Bromine35
Krypton36
Rubidium37
Strontium38
Yttrium39
Zirconium40
Niobium41
Molybdenum42
Technetium43
Ruthenium44
Rhodium45
Palladium46
Silver47
Cadmium48
Indium49
Tin50
Antimony51
Tellerium52
Iodine53
Xenon54
Caesium55
Barium56
Lanthanum57
Cerium58
Praseodymium59
Neodymium60
Promethium61
Samarium62
Europium63
Gadolinium64
Terbium65
Dysprosium66
Holmium67
Erbium68
Thulium69
Ytterbium70
Lutetium71
Hafnium72
Tantalum73
Tungsten74
Rhenium75
Osmium76
Iridium77
Platinum78
Gold79
Mercury80
Thallium81
Lead82
Bismuth83
Polonium84
Astatine85
Radon86
Francium87
Radium88
Actinium89
Thorium90
Protactinium91
Uranium92
Neptunium93
Plutonium94
Americium95
Curium96
Berkelium97
Californium98
Einsteinium99
Fermium100
Mendelevium101
Nobelium102
Lawrencium103
Rutherfordium104
Dubnium105
Seaborgium106
Bohrium107
Hassium108
Meitnerium109
Darmstadtium110
Roentgenium111
Copernicium112
Nihonium113
Flerovium114
Moscovium115
Livermorium116
Tennessine117
Oganesson118