Question

question 6
10 pts
which of the following rules does the following orbital spin diagram violate?
1s 2s 2p
electrons have to fill lower energy levels before they can fill higher energy levels.
if two electrons are in the same orbital, they will have opposite spins.
an electron will not share an orbital with another electron if there is an empty orbital with the same energy.
an electron will not share an orbital with another electron if there is an empty orbital with a different amount of energy.

Explanation:

The 2s orbital is not fully - filled (it should have 2 electrons with opposite spins) before electrons start filling the 2p orbitals. According to the Aufbau principle, electrons fill lower - energy orbitals first. Here, the 2s orbital has only 1 electron while the 2p orbitals are being filled, which violates the rule that electrons have to fill lower energy levels before they can fill higher energy levels.

Answer:

Electrons have to fill lower energy levels before they can fill higher energy levels.