Question

Define valency of an elemen.write the valencies of sodium,chromium,zinc and iron.
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Answer 1

Explanation:

Valency is the combining power of an element. Elements in the same group of the periodic table have the same valency. The valency of an element is related to how many electrons are in the outer shell. ... V - beneath each symbol, write it's valency.

• The valency of sodium is 1.
• The valency of chromium is 2.
• The valency of zinc is 2.
• The valency of iron is 2.

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Answer 2

sodium= 1

chromium= 2

zinc= 2

iron= 2,3

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