Question

Characteristics of a Group or Elements

Is shiny
Is solid at room temperature
Has atoms with two valence electrons

Answer 1

I assume you meant "of" instead of "or". Also I assume you want to identify the group although you never asked a question.
Is shiny. METALS
Is solid at room temperature. METALS
Has atoms with two valence electrons. MUST BE GROUP II; I.E., Be, Mg, Ca, Sr, Ba, Ra.