Fred Bayer | Rosenheim | Germany | (+49) 8031 86550 | fred@bayerf.de

90 – Th – Thorium

Th This is tungsten impregnated with thorium, used to make filaments for electron tubes. Amount: 0.9 g, including 20 mg Thorium.

Physical and chemical data
Atomic mass232.0381
Density11.72 g·cm-3
Melting point1750 °C
Boiling point4850 °C
Abundance1.00e-3 %
Oxydation levels4
Electron configuration[Rn]6d2 7s2

  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  
Last modification: April 21st 2021, 5:36 p.m. — Page generated April 24th 2021, 3:33 p.m. with Django