Misc: what is the element for the symbol Ta?

Questions

In 1919 Dame Margot ---------- England, ballerina (partner of Nureyev), born.?

In 1960 Yannick ---------- France, tennis player (French 1983), born.?

In 1965 Gene ---------- suggests 16 names including Kirk for Star Trek Captain.?

In 1980 Ian ---------- musician (Joy Division), dies.?

In 1980 Mount ---------- blows its top in Washington State.?