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chapter 3,1
chapter 3.1
| Term | Definition |
|---|---|
| Atom | The basic particle from which all elements are made |
| electron | tiny negitivily charged particles that moves around the outside of the nuclous of an atom |
| nuclious | in cells a large oval that contains the cells genetic material |
| proton | small positively charged particles that are found in the nucleus of an atom |
| energy level | a region of an atom in which electrons of the same energy level are likely to be found |
| neutron | a small particle in the nucleus of an atom, with no electrical charge |
| atomic number | The number of protons in the nucleus of an atom |
| istope | an atom with the same number of protons and a different number |
| mass number | The sum of protons and neutrons in the nucleus of an atom |