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  4. Arrange the following elements in the decreasing order of metallic characters. Si, Be, Mg, Na and P. Select the correct answer.

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Q. Arrange the following elements in the decreasing order of metallic characters. $Si, Be, Mg, Na$ and $P$. Select the correct answer.

Classification of Elements and Periodicity in Properties

Solution:

Down the group metallic character increases, while in period from left to right metallic character decreases, but non-metallic character increases.
So, the correct order is
$Na > Mg > Be > Si > P$
Alkali metals have more metallic character than other groups.