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Thulium
(Tm)
1
1
0
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2
8
18
31
8
2
Animation
Tm
Category
Lanthanoid
Series
lanthanide
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Relative atomic mass
168.93
Density
Melting point (°C)
Boiling point (°C)
Electronegativity (Pauling)
—
Discovery year
1879
Discovered by
Per Teodor Cleve
Electrons: 69
Protons: 69
Neutrons: 100
Wikipedia
created by @lukaswyss
Thulium (Tm) – Element 69
