The group number. number of valence electrons. and valency of an element with atomic number 15. respectively. are

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16,5 and 2

16,6 and 3

15,5 and 3

15,6 and 2

answer is C.

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Detailed Solution

Atomic number (Z)=15⇒P→[Ne]3s23p3Phosphorus belong, to 15th groups Number of valence electrons = 5 and valency = 3 in ground state.

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