Question

Explain the position of hydrogen in the mordern periodic table

Answer 1

Answer:

Hydrogen is a nonmetal and is placed above group in the periodic table because it has ns1 electron configuration like the alkali metals. ... Because hydrogen is a nonmetal and forms H- (hydride anions), it is sometimes placed above the halogens in the periodic table. Hydrogen also forms H2 dihydrogen like halogens.

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Answer 2

Explanation:

hydrogen has similar properties with halogens and alkali metals.In alkali metals their valency is one and hydrogen valency also one.so, it placed in first group