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Electron Configuration Practice Worksheet
On a separate piece on paper, write the electron configurations, orbital filling diagrams, and electron dot structures of the following elements:
- sodium
- iron
- bromine
- barium
- thallium
- cobalt
- silver
- tellurium
- radium
- astatine
- lithium
- oxygen
- calcium
- titanium
- rubidium
- lead
- bismuth
- chlorine
- iron
- zinc
- polonium
- tellurium
- tungsten
- molybdenum
- seaborgium
Determine what elements are denoted by the following electron configurations:
1s^2 2s^2 2p^6 3s^2 3p^4 ____________________
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^1 ____________________
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^5 ____________________
Electron Configurations - Solutions
Note: The electron configurations in this worksheet assume that lanthanum (La) is the first element in the 4f block and that actinium (Ac) is the first element in the 5f block. If your periodic table doesn’t agree with this, your answers for elements
- sodium 1s^2 2s^2 2p^6 3s near the f-orbitals may be slightly different.
- iron 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d
- bromine 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p
- barium 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s
- thallium 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^10 6p
- cobalt [Ar] 4s^2 3d
- silver [Kr] 5s^2 4d
- tellurium [Kr] 5s^2 4d^10 5p
- radium [Rn] 7s
- astatine 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^10 6p
- lithium 1s^2 2s
- oxygen 1s^2 2s^2 2p
- calcium 1s^2 2s^2 2p^6 3s^2 3p^6 4s
- titanium 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d
- rubidium 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s
- lead 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d
- bismuth 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^10 6p
- chlorine 1s^2 2s^2 2p^6 3s^2 3p
- iron 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d
- zinc 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d
- polonium 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^10 6p
- tellurium 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p
- tungsten 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d
- molybdenum 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d
