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atoms
| Question | Answer |
|---|---|
| Electrons: | : they orbit the nucleus, moving near the speed of light and have a (-) charge |
| Protons: | they are found inside the nucleus and have a (+) charge |
| Nucleus | a positively charged central core of an atom consisting of protons and neutrons and containing nearly all of its mass |
| Atom: | the smallest unit of matter that contains characteristics of each element |
| Neutrons | they are found inside the nucleus and have no charge ( ) |
| Matter: | anything that has mass and takes up space that is made up of atoms and elements |
| Periodic Table: | a table where elements are organized by increasing atomic number |
| 8. Elements: | a substance made up of the same atoms when combined |