T/f all metals have two oxidation numbers

False

Explanation:

The metals of the 1A and 2A group has only 1 oxidation number.

In 1A metals have oxidation number +1, in 2A  oxidation number of metals is +2. Al has "+3".

Other metals like Mn have several oxidation numbers +2,+3,+4,+6,+7.

equal distribution i think.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds