28. Each of the following sets of quantum numbers is supposed to specify an orbi

Question

28. Each of the following sets of quantum numbers is supposed to specify an orbital. Choose the one set of quantum numbers that does not contain an error (4 Points) E) n = 4, 1-2, mi =+4 29. Choose the ground state electron configuration for Zn2" (4 Points) A) [Ar]4s'3d B) [Ar]3d C) (Ar]4s'3d D) [Ar] 30. Choose the diamagnetic species from below (4 Points) A) Sn2 B) Br C) P D) Cr E) None of the above are diamagnetic. 31. Give the set of four quantum numbers that represent the last electron added (using the Aufbau principle) to the Cl atom (4 Points) A)n-3, l = 1, ml 1, ms = + 1/2 B)n=3,l=0, ml = 0, ms-. 1/2 c) n = 3, l = 1, ml =0 , ms = + 1/2 D) n = 2, l = 1, ml:0, ms =-1/2 E) n=3,l=1,ml:0, ms =-1/2

Explanation / Answer

28)

The answer os D

For n=4, l also have four values they are 0,1,2, and 3.

for l=3 , ml = -3,-2,-1,0,+1,+2 and +3 are exist.

29)

Zn= 30 = 1s2 2s2 2p6 3s2 3p6 4s2 3d10 = [Ar] 3d10 4s2

Zn+2 means Zn looses two electrons from the 4S orbital

Zn+2 = [Ar] 3d10

the answer is B

30)

Sn = 50 = [Kr]4d10 5s2 5p2

Sn+2 = [Kr} 4d10 5s2

So it contains pair of electons in the outer most orbit. so it exhibit diamagnetic property.

The answer is A.

31) the answer is E

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