Why Does an Electron Found in a 2s Orbital Have

question 45

Multiple Choice

Why does an electron found in a 2s orbital have a lower energy than an electron found in a 2p orbital in multielectron systems?

• A) Electrons in the 2s orbital are shielded by electrons in the 2p.
• B) There are more nodes found in the 2s orbital.
• C) Electrons in the 2s orbital can penetrate the 1s orbital and be closer to the nucleus.
• D) The larger number of electrons found in the 2p orbital leads to greater repulsion.
• E) The shape of the orbital ultimately determines the energy of the electrons.

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