Helium on earth

Helium was identified on Earth after being previously detected only in solar observations. Ramsey extracted it out of a uranium mineral. Like argon, this element didn't quite fit into the existing periodic table.
William Ramsay Scotland 1895
Helium on earth

Helium was identified on Earth after being previously detected only in solar observations. Ramsey extracted it out of a uranium mineral. Like argon, this element didn't quite fit into the existing periodic table.