KhadosBrelucie KhadosBrelucie

22-01-2016
Chemistry

contestada

When an atom of phosphorus becomes a phosphide ion (P3–), the radius
(1) decreases
(2) increases
(3) remains the same?

Respuesta :

22-01-2016

Increases. Negative ions are usually larger than their elements' atoms because more electrons are added, increasing the atomic radius.

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superman1987 superman1987

09-08-2018

The correct answer is (2) increases

The explanation:

when more electrons are added, increasing the atomic radius

with the negative charge means there are more electron than protons, this increases the radius because the positive charge is trying to hold a larger negative charge .

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