Question

Which is the correct order for atomic size?

Na > Al > Cl > Mg
Al > Cl > Mg > Na
Na > Mg > Al > Cl
Cl > Al > Mg > Na

Answer 1

Answer:

Na > Mg > Al > Si > Cl.

Explanation:

Metallic characteristic decreases across a period on moving right. Therefore, the order comes out to be Na > Mg > Al > Si > Cl.

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