Question

Arrange the following elements in the decreasing order of metallic character. (i) Si, Be, Mg, Na, P (ii) B, Al, Mg, K

Answer 1

Dear User,

Metallic character decreases on going from left to right across a period due to decreased atomic size which thereby increases the tendency of an element to gain electrons while the metallic increases on going down the group due to increased size of the atom which increases its tendency to lose electrons. Therefore, the decreasing order of metallic character is :
(i) Na> Mg > Be> Si>P
(ii)K>Mg>Al>B


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