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vocab
Term | Definition |
---|---|
Electric charge | Fundamental property of matter that can be either positive or negative. |
Elementary charge | Smallest unit of electric charge |
Electron | Particle with a negative charge |
Nucleus | Center of an atom |
Proton | Positively charged particle |
Neutron | Particle with no charge (neutral) |
Atomic number | The number of protons in the nucleus of an atom |
Isotope | Atoms of the same element with different amounts of neutrons |
Mass number | The number of protons and neutrons in an atom |