Question
Asked Oct 16, 2019
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State the number of electrons in each of the following ions:

P3-

F-

Mg2+

Ca2+

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Expert Answer

Step 1

The number of electrons can be calculated for the following species as,

P3-

Phosphorus has an atomic number of 15. Hence it consists of 15 electrons in a neutral atom. Here it is forming an anion by gaining three electrons. Hence the number of electrons will be 18.

Step 2

F-

Fluorine has an atomic number of 9. Hence it consists of 9 electrons in a neutral atom. Here it gains one electron and form an anion. Hence the total electrons will be 10.

Step 3

Mg2+

Magnesium has an atomic number of 12. Hence it consists of 12 electrons in a neutral atom. Her...

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Chemistry

General Chemistry

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