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