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For each of the following species, determine whether they are elements and determine whether they are molecules.

$\text{H}_{2}$
Select Option elementnot an element
Select Option moleculenot a molecule


$\text{He}$
Select Option elementnot an element
Select Option moleculenot a molecule


$\text{H}_{2}\text{O}$
Select Option elementnot an element
Select Option moleculenot a molecule


$\text{P}_{4}$
Select Option elementnot an element
Select Option moleculenot a molecule

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