leishikhayai leishikhayai

12-12-2020
Chemistry

contestada

the atomic number of an element X is 15 . what would be the valency of X

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Аноним Аноним

12-12-2020

Answer:

its valency must be 3

hope it helps.

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jacksonj1816 jacksonj1816

12-12-2020

Answer: -3

Explanation: an element with atomic number of 15 is Phosphorus the Electronic configuration of phosphorous is 2, 8, 5. It has 5 electrons in its last orbit which can be completely filled by accepting 3 electrons.

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