An ion that consists of 7 protons, 9 neutrons, and 10 electrons has a net charge of
A) 2–
B) 2+
C) 3+
D) 3–
The answer is D. Why the answer is not A but D? Can you explain?

Respuesta :

The answer I believe is now b)2+ because if you so the add and subtract in this you will get 2+

The net charge of the ion that consists of 7 protons, 9 neutrons, and 10 electrons will be -3.

HOW TO CALCULATE NET CHARGE:

  • The net charge of an ion can be calculated by subtracting the number of electrons from the number of protons in an atom. That is;

net charge = no. of protons - no. of electrons

  • The number of protons is the number of positive charges while the number of electrons is the number of negative charges in an atom.

  • Therefore, if an ion consists of 7 protons, 9 neutrons, and 10 electrons, the net charge is as follows:

net charge: 7 - 10

net charge = -3

  • Therefore, the net charge of the ion that consists of 7 protons, 9 neutrons, and 10 electrons will be -3.

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