the ion of an element has 3 positive charge, 27 mass number and 14 neutrons. what is the number of electrons in this ion-

Asked by deepika babbar | 16th Dec, 2013, 01:00: PM

Expert Answer:

Let the ion be X3+ .

Mass number = Number of protons + Number of neutrons

27 =   x   +  14

Number of protons (x) = 27 - 14

                                       = 13

Since, Number of protons = Number of electrons

Number of electrons will be: 13

Since, the given ion has +3 charge. It will lose 3 electrons from its outermost shell.

 

Therefore, the number of electrons in X3+ ion will be 10.

Answered by Hanisha Vyas | 16th Dec, 2013, 01:28: PM

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