Name: Worksheet: Electron Configurations Period:

Name: _____. worksheet : Electron Configurations Period: _____. ____1. Which Electron configuration represents an atom in an ____9. Which sublevel configuration correctly represents a excited state? completely filled third principal energy level? A) 1s22s22p63p1 C) 1s22s22p63s23p2 A) 3s23p63d8 C) 3s23p63d10. 2 2 6 2 1. B) 1s 2s 2p 3s 3p D) 1s22s22p63s2 2 2 10. B) 3s 3p 3d D) 3s23p63d5. ____2. All of the elements in Period 3 have a total of 2 ____10. Which atom in the ground state contains a partially electrons in the filled 3p orbital? A) 2s sublevel C) 2p sublevel A) argon C) potassium B) 3s sublevel D) 3p sublevel B) calcium D) aluminum ____3. Which atom in the ground state has three unpaired ____11. In the ground state, the atoms of elements in Period 2. electrons in its outermost principal energy level?

____29. An atom with the electron configuration of ls22s22p63s23p63d54s2 has an incomplete A) 2p sublevel B) second principal energy level C) third principal energy …

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  Worksheet, Configuration, Name, Energy, Periods, Electron configurations period, Electron

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