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 :

m8bro
m8bro m8bro
  • 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 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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