Question

An element has X valence electrons in its outer monst orbit, its valency may be?

Answer 1

Explanation:

Carbon has four valence electrons and here a valence of four. Each hydrogen atom has one valence electron and is univalent.

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The number of valence electrons.

Periodic table block Periodic table group Valence electrons

f Lanthanides and actinides 3–16

d Groups 3-12 (transition metals) 3–12