Q. 35.0( 1 Vote )
Pick out the wrong ones from the subshell electronic configurations given below.
a) 1s2 2s2 2p7
b) 1s2 2s2 2p2
c) 1s2 2s2 2p5 3s1
d) 1s2 2s2 2p6 3s2 3p6 3d2 4s1
e) 1s2 2s2 2p6 3s2 3p6 3d2 4s2
Answer :
The wrong electronic configurations are a), c), d).
In a) 1s2 2s2 2p7, p subshell can have a maximum of only 6 electrons.
In c) 1s2 2s2 2p5 3s1, According to Aufbau rule electrons will be filled first in that subshell which has less energy and when less energy subshell will become full filled then after this next subshell will be filled.
In d) 1s2 2s2 2p6 3s2 3p6 3d2 4s1, here 4s subshell will be full filled first and after this 3d subshell will fill because 4s subshell has less energy than 3d subshell.
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
PREVIOUSWhen the last electron of an atom was filled in the 3d subshell, the subshell electronic configuration was recorded as 3d8. Answer the questions related to this atom.• Complete subshell electronic configuration• Atomic number• Block• Period number• Group numberNEXTThe element X in group 17 has 3 shells. If so,a) Write the subshell electronic configuration of the element.b) Write the period numberc) What will be the chemical formula of the compound formed if the element X reacts with element Y of the third period which contains one electron in the p subshell?
Related Videos
Electronic Configuration and Valency47 mins
Electronic Configuration45 mins
Exploring Periodic Table29 mins
Mnemonics to Learn Modern Periodic Table38 mins
Important Mnemonics to Learn Modern Periodic Table48 mins
Smart Revision | Trends of Periodic Table in 35 minutes49 mins
Time Table Of Toppers46 mins
3 Tips to make Time Table38 mins
Foundation | Pradeep's H.O.T.S. : Periodic Classification48 mins
Smart Revision | Identify Me...45 mins




















Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation


RELATED QUESTIONS :
Pick out the wrong ones from the subshell electronic configurations given below.
a) 1s2 2s2 2p7
b) 1s2 2s2 2p2
c) 1s2 2s2 2p5 3s1
d) 1s2 2s2 2p6 3s2 3p6 3d2 4s1
e) 1s2 2s2 2p6 3s2 3p6 3d2 4s2
Kerala Board Chemistry Part I