Question

an element with 2 as valency belongs to 2nd group and an element that has 3 as its valency belongs to 13th group why and what valency do group 3 consists​

Answer 1

Answer:

group three will also have valency as three because it three electrons in valence shell

Answer 2

Answer:group 3 will also have 3 valency because they have 3 valence electrons.

Explanation:They will lose 3 electrons from outer shell to achieve Noble gas configuration.

So they have 3 as valency.

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