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# Which one of the following elements exhibit maximum number of valence electrons?- Na
- Al
- Si
- P

Correct answer: (d) P

Explanation: Phosphorus (P) has the maximum number of valence electrons.

As the Electronic configuration of P (15) : 2 8 5

Sodium (Na) has 1, Silicon has 4, and Aluminium (Al) has 3.

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