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Erbium
(Er)
1
1
0
Open in calculator
2
8
18
30
8
2
Animation
Er
Category
Lanthanoid
Series
lanthanide
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Relative atomic mass
167.26
Density
Melting point (°C)
Boiling point (°C)
Electronegativity (Pauling)
—
Discovery year
1843
Discovered by
Carl Gustaf Mosander
Electrons: 68
Protons: 68
Neutrons: 99
Wikipedia
created by @lukaswyss
Erbium (Er) – Element 68
