The correct order of metallic character is:

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Question

(C) Metallic character increases down a group and decreases across a period from left to right.$K$ (Potassium) is in Group $1$ and Period $4$.$Ca$ (Ca

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$K > Ca > Be$

Vedclass · Answer

(C) Metallic character increases down a group and decreases across a period from left to right.$K$ (Potassium) is in Group $1$ and Period $4$.$Ca$ (Calcium) is in Group $2$ and Period $4$.$Be$ (Beryllium) is in Group $2$ and Period $2$.Comparing these,$K$ is the most metallic as it is in Group $1$. Between $Ca$ and $Be$,$Ca$ is more metallic because it is below $Be$ in Group $2$.Therefore,the correct order is $K > Ca > Be$.

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