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Lanthanum

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From Simple English Wikipedia, the free encyclopedia
Lanthanum in a glass tube.

Lanthanumis achemical element.It has the chemical symbolLa.It has theatomic number57. It is part of a group of chemical elements in the periodic table named theLanthanides.It is arare earth element.It is silvery white,malleableandductile.It is soft and can be cut with a knife.

Periodic table
H He
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 La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og
Alkali metals Alkaline earth metals Lanthanides Actinides Transition metals Poor metals Metalloids Othernonmetals Halogens Noble gases
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