Question

Which of the following statements concerning ground state electron configuration is/are CORRECT?

1.) For a hydrogen atom with one electron, the 2s and 2p orbitals have identical energies.

2.) For a lithium atom with three electrons, the 2s and 2p orbitals have different energies.

3.) The effective nuclear charge felt by an electron in a 2p orbital is greater for a carbon atom than for a boron atom?

Answer 1