Arrange the following elements in the order of their decreasing metallic character.
Na, Si, Cl, Mg, Al
A
Cl > Si > Al > Mg > Na
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B
Na > Mg > Al > Si > Cl
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C
Na > Al > Mg > Cl > Si
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D
Al > Na > Si > Ca > Mg
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Solution
The correct option is B Na > Mg > Al > Si > Cl Metallic characteristic decreases across a period on moving right. Therefore, the order comes out to be Na > Mg > Al > Si > Cl.