What are the valencies of chalcogens?(Group 16) 1:1 and 4 2:2 and 1 3:2 and 5 4:2 and 6 5:1 and 5

1 Answer
anor277
Mar 24, 2018

This might not be the answer you want.

Explanation:

The chalcogens form hydrides of formula #H_2E#. We would say that the chalcogen atom has an oxidation state of #-II# or a valency of #+2#.

You know how stable the water molecule is; it covers two thirds of this Earth’s surface. The lower hydrides, hydrogen sulfide, and hydrogen selenide are all foul-smelling poisonous gases.

Anyway, I don’t think I have grasped the point of your question, so would you clarify?

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