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3. Write the only Possible oxidation state of aluminum. b. Briefly Explain this situation using the...

3. Write the only Possible oxidation state of aluminum.

b. Briefly Explain this situation using the electron configuration of the alumnium ion

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Answer #1

3)

a)

only possible oxidation state of Al is +3

b)

Number of electron in Al = 13

Electronic configuration is 1s2 2s2 2p6 3s2 3p1

Since charge on Al is +3

So, we need to remove 3 electrons

Electrons are always removed from highest number orbital

Removing 1 electron from 3p

Removing 2 electron from 3s

Final electronic configuration is : 1s2 2s2 2p6

This is electronic configuration of Aluminium ion. This is noble gas configuration and hence stable since octet is complete

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