No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
1s2,2s2,2p6,3s2,3p6,3d10,4s1
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1s2,2s2,2p6,3s2,3p6,4s1
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
All of the above
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is C1s2,2s2,2p6,3s2,3p6,4s1 The correct option is c Last electron enters the s subshell, but in case of options a and b , the last electron enters in d subshell and the elements are chromium and copper respectively.