1.

Among the elements of the second period Li to Ne pick out the element that is the most reactive non-metal.

Answer»

2nd period: Li, Be, B, C, N, O, K, Ne

The reactivity of a non-metal can be estimated from its Electronegativity. The non-metal having higher Electronegativity should be more reactive. Thus, here the most reactive non-metal is F.



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