_Models Useful for Understanding Atoms Lesson 3.1
- Why are models useful for understanding atoms?
- atomic number
- mass number
- Because atoms are so small, scientists create models to describe them.
- In science, a model may be a diagram, a mental picture, a mathematical statement, or an object that helps explain ideas about the natural world.
- These models are used to make and test predictions.
- Models of atoms are used to explain why elements react with other elements.