Problem: Which of these molecular electron configurations describe an excited state? Check all that apply.a. (σ1s)2(σ1s*)2(σ2s)2(σ2s*)2(σ2p)2(π2p)4b. (σ1s)2(σ1s*)2(π2p)1c. (σ1s)2(σ1s*)2(σ2s)2(σ2s*)2(σ2p)2(σ2p*)1d. (σ1s)2(σ1s*)2(σ2s)1(σ2s*)1

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FREE Expert Solution

We’re being asked to determine which among the give molecular electron configurations is in excited state.

An excited state can be identified by:

electron that has skipped orbitals
orbitals that are not completely filled and the next one is already filled


The general order of orbitals when they are written is:

1s)(σ1s*)(σ2s)(σ2s*)(σ2p)(π2p)(π2p*)(σ2p*)

These orbitals can contain a maximum number of electrons:

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Problem Details

Which of these molecular electron configurations describe an excited state? Check all that apply.

a. (σ1s)21s*)22s)22s*)22p)22p)4

b. (σ1s)21s*)22p)1

c. (σ1s)21s*)22s)22s*)22p)22p*)1

d. (σ1s)21s*)22s)12s*)1

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