Question

copper exibits variable valency ( true or false).
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Answer 1

Answer:

your answer is true.

As

Copper shows variable valency because of the different electronic configurations. An atom of an element can sometimes lose more electrons than are present in its valence shell that is loss from the penultimate shell and hence exhibit more than one.

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Answer 2

Answer:

True.

Explanation:

∆ Copper shows variable valency because of the different electronic configurations. An atom of an element can sometimes lose more electrons than are present in its valence shell that is loss from the penultimate shell and hence exhibit more than one valency.

∆ When an element does not have a specific valency, its valency is called variable valency. Copper has valency '1' and '2' that is the number of electrons lost or gained is 1 or 2 in different compounds.

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