Problem: Sort the following electron configurations of neutral atoms based on whether they represent an excited state configuration or a ground state configuration.

🤓 Based on our data, we think this question is relevant for Professor Schmidt's class at PURDUE.

FREE Expert Solution

Ground-state → element is in its lowest energy form 

Excited-state → an electron is at a higher energy level than its ground state

1s → 2s → 2p → 3s → 3p → 4s → 3d → 4p → 5s → 4d → 5p


1s22s22p63s23p63d104s24p64d1

• 5s is lower in energy than 4d

• 5s should be filled first before 4d

Excited State


[Ar]4s13d6

• 4s should be fully filled first before moving to another orbital (3d)

Excited State


[He]2s12p4

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Problem Details

Sort the following electron configurations of neutral atoms based on whether they represent an excited state configuration or a ground state configuration.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Electron Configuration concept. You can view video lessons to learn Electron Configuration. Or if you need more Electron Configuration practice, you can also practice Electron Configuration practice problems.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Schmidt's class at PURDUE.