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Ruthenium
(Ru)
0
2
0
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2
8
18
15
1
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Ru
Category
Transition metal
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Relative atomic mass
101.07
Density
12.2
Melting point (°C)
2523
Boiling point (°C)
4423
Electronegativity (Pauling)
2.2
Discovery year
1844
Discovered by
Karl Ernst Claus
Electrons: 44
Protons: 44
Neutrons: 57
Wikipedia
created by @lukaswyss
Ruthenium (Ru) – Element 44
