Dr Ayesha Shakeel on Nearpeer MDCAT Common Room
Which subshell is filled first according to Aufbau principle? A 4s B 3d C 4p D 3p iss ka correct kon sa ha
Namra Abdul majid · 2026-08-30T14:23:41.853Z
Is ka correct option 4s hoga because according to aufbau principle electrons are filled in increasing order and 4s pahlay ata hy
Hehe · 2026-08-30T15:03:11.131Z
3p,subshell with lower value of 'n' will be filled first- Aufbau principle
Urooj · 2026-08-30T15:27:27.739Z
According to the Aufbau principle, electrons fill orbitals from lower energy to higher energy.The order around these options is: 3p → 4s → 3d → 4p So the first subshell filled is 3p. Answer: D) 3p
Ch Khuzaima Ghumman · 2026-08-30T14:10:03.207Z
A