Skip to main content
    UnitConvertLab logo

    Periodic Table of Elements

    Interactive periodic table with atomic masses, categories, and element search.

    Nonmetal
    Noble Gas
    Alkali Metal
    Alkaline Earth
    Metalloid
    Halogen
    Post-transition
    Transition Metal
    Lanthanide
    Actinide
    1H1.01
    2He4.00
    3Li6.94
    4Be9.01
    5B10.81
    6C12.01
    7N14.01
    8O16.00
    9F19.00
    10Ne20.18
    11Na22.99
    12Mg24.30
    13Al26.98
    14Si28.09
    15P30.97
    16S32.06
    17Cl35.45
    18Ar39.95
    19K39.10
    20Ca40.08
    21Sc44.96
    22Ti47.87
    23V50.94
    24Cr52.00
    25Mn54.94
    26Fe55.84
    27Co58.93
    28Ni58.69
    29Cu63.55
    30Zn65.38
    31Ga69.72
    32Ge72.63
    33As74.92
    34Se78.97
    35Br79.90
    36Kr83.80
    37Rb85.47
    38Sr87.62
    39Y88.91
    40Zr91.22
    41Nb92.91
    42Mo95.95
    43Tc98.00
    44Ru101.07
    45Rh102.91
    46Pd106.42
    47Ag107.87
    48Cd112.41
    49In114.82
    50Sn118.71
    51Sb121.76
    52Te127.60
    53I126.90
    54Xe131.29
    55Cs132.91
    56Ba137.33
    57La138.91
    72Hf178.49
    73Ta180.95
    74W183.84
    75Re186.21
    76Os190.23
    77Ir192.22
    78Pt195.08
    79Au196.97
    80Hg200.59
    81Tl204.38
    82Pb207.20
    83Bi208.98
    84Po209.00
    85At210.00
    86Rn222.00
    87Fr223.00
    88Ra226.00
    89Ac227.00
    104Rf267.00
    105Db268.00
    106Sg269.00
    107Bh270.00
    108Hs269.00
    109Mt278.00
    110Ds281.00
    111Rg282.00
    112Cn285.00
    113Nh286.00
    114Fl289.00
    115Mc290.00
    116Lv293.00
    117Ts294.00
    118Og294.00

    Element Search

    Find elements instantly by typing their name (e.g., "Gold"), symbol ("Au"), or atomic number ("79").

    Groups & Periods

    Vertical columns are "Groups" with similar chemical properties. Horizontal rows are "Periods" representing energy levels.

    Atomic Mass

    Values shown are standard atomic weights (relative atomic mass) averaged over isotopes found in nature.

    Cite this page

    UnitConvertLab. (2026). Periodic Table of Elements. UnitConvertLab. Retrieved from https://unitconvertlab.com/reference/periodic-table