Use the periodic table to help complete the following practice activities.

Practice 1: Matching

Interactive exercise. Assistance may be required. Directions: Match the following elements to their correct electron configuration.

Practice 2: Fill in the Missing Information

Interactive exercise. Assistance may be required. Directions: A partial electron configuration has been written for each of the elements below. Complete the electron configuration by filling in the boxes.

Practice 3: Writing Electron Configurations

Directions: Write the electron configuration for the following elements on your own paper.

  1. silicon

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    1s22s22p63s23p2Close Pop Up

  2. manganese

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    1s22s22p63s23p64s23d5Close Pop Up

  3. nickel

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    1s22s22p63s23p64s23d8Close Pop Up