Find the missing text [*A***]
Background picture associated with the solution.Correct answers: 27
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Lars Fredrik NilsonDied 14 May 1899 at age 58 (born 27 May 1840).Chemist who discovered (1879) the oxide of scandium, scandia, in the rare-earth minerals gadolinite and euxenite. The existence of the element had been predicted by Dmitry Ivanovich Mendeleyev (1871) who tentatively called it ekaboron. |