Now let's talk about where the Octet Rule does apply: the ionic bond. The magnesium atom used to form this compound still wants a full octet, and as it is in Group II, it achieves this most easily by losing two valence electrons, giving this magnesium ion a charge of +2.
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jellybeans95
how can magnesium lose two valence electrons?
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How to achieve the octet of magnesium
Answer
Now let's talk about where the Octet Rule does apply: the ionic bond. The magnesium atom used to form this compound still wants a full octet, and as it is in Group II, it achieves this most easily by losing two valence electrons, giving this magnesium ion a charge of +2.
#BRAINLY.PH