GOB Chemistry

Learn the toughest concepts covered in your GOB - General, Organic, and Biological Chemistry class with step-by-step video tutorials and practice problems.

Atoms and the Periodic Table

Electron Arrangements

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Electron Arrangement gives the number of electrons in each energy level (n).

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concept

Electron Arrangements Concept 1

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example

Electron Arrangements Example 1

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Problem

Write the electron arrangement for the following element:Calcium (Z = 20)