Electrons Can Sometimes Fill Orbitals in a Manner Other Than

question 74

Multiple Choice

Electrons can sometimes fill orbitals in a manner other than according to the rules we have specified. If they do so we say the atom is in an excited state. Which of the following represent(s) the excited state of an atom?

• A) 1s²2s²2p⁶3s²
• B) 1s²2s²2p⁶3s¹3p¹
• C) both a and b
• D) neither a nor b

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