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Teaching Introduction to Isotopes and Mass Number [PhET Simulation]

Introduction to Isotopes and Mass Number [PhET Simulation]

This is an interactive simulation that explores how changing the number of neutrons in an atom changes its mass number. Modeling in the simulation helps students visualize the meaning of isotopes and mass number.

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PhET

ESSENTIAL QUESTION:

What are isotopes and how do they relate to the mass number of an element?
STANDARDS:

DEPTH OF KNOWLEDGE (DOK) LEVELS:

1,3
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