Atomic Structure Question 206
For the energy levels in an atom, which one of the following statements is true
[AIIMS 1983]
Options:
A) There are seven principal electron energy levels in the context of the Bohr model, though modern quantum mechanics describes electron orbitals rather than fixed energy levels.
B) The second principal energy level can have two sub-energy levels and contains a maximum of eight electrons
C) The $ M $ energy level can have a maximum of 32 electrons
D) The $ 4s $ sub-energy level is at a lower energy than the $ 3d $ sub-energy level
Show Answer
Answer:
Correct Answer: B
Solution:
The second principal shell contains four orbitals viz $ 2s,,2p_{x},2p_{y},,2p_{z} $ and $ 2p_{z}. $
BETA
