Question

2/10
is the above figure is correct?
a yes
b no

Explanation:

According to the Aufbau principle, electrons fill orbitals starting from the lowest - energy orbitals. The 1s orbital should be completely filled before electrons enter the 2s orbital. In the given figure, the 1s orbital is not completely filled (it should have two electrons with opposite spins), and the 2p orbital filling is also incorrect as per the Aufbau principle.

Answer:

B. No