useful information

Periodic Table Of The Elements

Please hold your mouse over the symbol of each element for a second to view details.
Users of tablets etc should touch the respective symbol (Phone users will find this table easier to read if the device is held in landscape orientation).

For radioactive elements, the mass number of the most stable isotope is given in square brackets

  Alkali Metals   Lanthanides   Semi Metals
  Alkaline Earth Metals   Actinides   Non Metals
  Transition Metals   Poor Metals   Noble Gases
Li Be B C N O F Ne
Na Mg Al Si P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Rf Db Sg Bh Hs Mt Uun Uuu Uub
La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr