X and Y is given: X: Atomic number = 7, Mass number = 14 |
Y: Atomic number = 7, Mass number = 15 |
A) Electronic configuration of X is 2, 8, 4 while that of Y is 2, 8, 5.
B) Both X and Y contain 7 neutrons.
C) X has 2 electron shells while Y has 3 electron shells.
D) Both X and Y have 5 valence electrons.
Correct Answer: D
Solution :
X and Y are isotopes having electronic configuration as 2, 5. Hence, both have five valence electrons.You need to login to perform this action.
You will be redirected in
3 sec