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Biochemistry
unit 3
| Term | Definition |
|---|---|
| Atom | basic unit of matter |
| element | substance composed of only one atom |
| proton | positive charged particle found in the nucleus |
| neutron | neutral charged particle found in the nucleus |
| electron | negative charged particle found in the energy ring |
| atomic number | number of protons in an element |
| atomic mass | number of protons and neutrons in an element |
| isotope | atoms of elements with that has different number of neutrons but the same number of protons |
| ion | charged particle either + or - |