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

a)

15, 5 and 3

b)

15, 6 and 2

c)

16, 5 and 2

d)

16, 6 and 3


Question ID - 56378 | Toppr Answer

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

a)

15, 5 and 3

b)

15, 6 and 2

c)

16, 5 and 2

d)

16, 6 and 3

1 Answer - 5876 Votes

3537

Answer Key : (a) -

Phosphorus has atomic number equal to 15. Its group number is 15, it has 5 valence electrons and valency equal to 3.



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