Question

What is the valency of hydrogen in metal hydrides​

Answer 1

This trend is so regular that the combining power, or valence, of an element was once defined as the number of hydrogen atoms bound to the element in its hydride. Hydrogen is the only element that forms compounds in which the valence electrons are in the n = 1 shell. ... The Chemistry of Nonmetals.

• H+ : 1s0
• H- : 1s2

Answer 2

Explanation:

This trend is so regular that the combining power, or valence, of an element was once defined as the number of hydrogen atoms bound to the element in its hydride. Hydrogen is the only element that forms compounds in which the valence electrons are in the n = 1 shell.

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