SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the charge of Mg?
A
+1
B
3
C
-2
D
2
Explanation: 

Detailed explanation-1: -Thus, magnesium has two units positive charge, written as Mg2+.

Detailed explanation-2: -Magnesium has two electrons in its outer shell as it is in group 2 of the periodic table, which it loses, so its outer shell is full (2, 8) and it has a charge of +2, as it still has 12 protons (positive charges) and now has only 10 electrons (negative charges).

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