Why two hydrogen atoms combine to form ` H_(2)` but two helium atoms do not combine to form ` He_(2)` ?

Why two hydrogen atoms combine to form ` H_(2)` but two helium atoms d

1.	Why two hydrogen atoms combine to form ` H_(2)` but two helium atoms do not combine to form ` He_(2)` ?
Answer» (i) New forces of attraction and repulsion and (ii) orbital concept ).

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Why two hydrogen atoms combine to form ` H_(2)` but two helium atoms do not combine to form ` He_(2)` ?

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