4(b) Name the kind of valency belonging to metals. Give proper reasons.

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Solution

Metals have one to three electrons in their outermost shell which they can easily donate to other elements to attain the stable octet configuration.
When metals lose valence electrons, the number of protons become more than the number of electrons, due to which the atom become positively charged.
Hence, metals possesses electropositive valency.

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Similar questions

An element X belongs to 3^rd period and group 2 of the periodic table. State :

(a) number of valence electrons (b) valency (c) metal or non-metal (d) name of the element

Give scientific reasons:

1. Atomic size increases down the group.

2. Metallic character decreases from left to right in a period.

3. Elements in the same group show same valency.

Give reasons for the following:

Sulphur exhibits negative valency.

Name the kind of valency belonging to non-metals. Give proper reasons.

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