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Question

Considering the elements B, Al, Mg and K, the correct order of their metallic character is:


A

B > Al > Mg > K

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B

Al > Mg > B > K

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C

Mg > Al > K > B

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D

K > Mg > Al > B

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Solution

The correct option is D

K > Mg > Al > B


Metallic nature decreases as you move from left to right in a period, giving us the order K>Mg>Al. It increases as you go from the top to the bottom in a group which means that Al>B.

The final order would be K>Mg>Al>B


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