8:427 Question 39 of 64 Submit Of the following, which sublevel is filled last? A) 3d...

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science chemistry

Answer 1

Answer #1

order of filling electrons accordin to Aufbau priciple is [ filling will takes place
for the smallest n+l value
1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s

n+ l value for 5s = 5+0 = 5
for 4d, n+l value = 4+ 2 =6

hence Subshell filled last is 4d

option D
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hope it is helpful

Answer 2

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