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

Isotopes

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Isotopes are atoms of an element that have the same atomic number, but different mass number. 

The Atomic View of Isotopes

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concept

Isotopes

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Isotopes are elements with the same number of protons, but different number of neutrons. 

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example

Isotopes Example 1

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Content
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Problem

Which of the following answers give the correct number of subatomic particles for ?

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Problem

Which of the following answers give the correct number of subatomic particles for ?

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Problem

Fill in the gaps for the following table of atoms.