Answer
Na has a larger atomic size and is more metallic than P.
Work Step by Step
Na is located at the left side of the periodic table, while P is nearer to the right. This means than it has a larger atomic size and is a metal.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.