Question

Neutron - 24
proton - 12
electron - 10

a) how many electrons are lost or gained by the magnesium atom in the formation of magnesium ion?
b) is the ion formed in the table above a positive ion or negative ion?

Answer 1

Answer:

a)2 electrons are lost to form Magnesium ion.

b) as proton are more than electrons therefore ion formed will be positive ion.

Answer 2

two electrons

Magnesium, Mg

It has two electrons in its outer shell. When these electrons are lost, a magnesium ion, Mg 2+, is formed. A magnesium ion has the same electronic structure as a neon atom (Ne).

ion formed is positive

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