Question

# Which of the following sets of quantum numbers represents the highest energy of an atom?

A
n=3,l=0,m=0,s=+1/2
B
n=3,l=1,m=1,s=+1/2
C
n=4,l=2,m=1,s=+1/2
D
n=4,l=0,m=0,s=+1/2

Solution

## The correct option is C $$n = 4, l = 2, m = 1, s = +1/2$$The sets of the quantum numbers and the corresponding orbitals are as shown below.$$a) n=3,l=0$$ means $$3s-$$ orbital$$b) n=3,l=1$$ means $$3p-$$ orbital$$c) n=4,l=2$$ means $$4d-$$ orbital$$d) n=4,l=0$$ means $$4s-$$ orbitalIncreasing order of energy among three orbitals is $$3s<3p<4s<4d$$$$\therefore 4d$$ has highest energy.Hence, the set c of quantum numbers ($$n = 4, l = 2, m = 1, s = +1/2$$)  represents the highest energy of an atom.Chemistry

Suggest Corrections

0

Similar questions
View More

People also searched for
View More