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Periodic Classification Of Elements
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09/09/2021 2:02 pm
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Name two elements you would expect to show chemical reactions similar to magnesium. What is the basis for your choice?
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09/09/2021 2:10 pm
Magnesium (Mg) belongs to group 2 known as Alkaline Earth Family. The two other elements belonging to the same group are calcium (Ca) and strontium (Sr). The basis of choice is the electronic distribution in the valence shell of these elements. All of them have two electrons each.
For example,
Mg(Z = 12)
K - 2
L - 8
M - 2
N - ..
O -
Ca(Z = 20)
K - 2
L - 8
M - 8
N - 2
O - 2
Sr(Z = 38)
K - 2
L - 8
M - 18
N - 8
O - 2