The magnesium ion is formed by the removal of two electrons hence the charge on the magnesium ion is +2.
What is an ion?
An ion is formed by the removal or addition of an electron from an atom. We know that an ion could be positive or negative. The ion is positive when an electron s removed and negative when an electron is added.
Now the magnesium ion is formed by the removal of two electrons hence the charge on the magnesium ion is +2.
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