EOG on Matter

What are atoms?

• Building blocks of all matter

• Smallest unit of life

• Cells

• It's electric

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Located in the nucleus of an atom:

• Protons and neutrons

• electrons

• protons only

• neutrons only

+++ charge

• Protons

• electrons

• neutrons

• atoms

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Negative charge

• electrons

• protons

• neutrons

• elements

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Cannot be broken down by physical means:

• pure substance

• mixture

• solution

You can easily identify the different substances:

• Heterogeneous mixture

• Homogeneous mixture

• solution

Two or more elements CHEMICALLY combined:

• Compound

• Mixture

• Heterogeneous mixture

• Homogenous mixture

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Particles are spread far apart and move quickly in random motion:

• Gas

• Liquid

• solid

• matter

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Particles spread further apart and move faster when

• Energy is added

• Energy is removed

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Arranges elements according to increasing number of protons:

• Periodic Table of Elements

• Textbook

• Glossary

• Numeric Table