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2.1-2.2 Vocab
Term | Definition |
---|---|
Homogeneous | A mixture that is evenly mixed |
Proton | Positively charged particle in an atom |
Neutron | The neutral charged particle in an atom |
Nucleus | The center of an atom |
Matter | Anything that has a mass and a volume |
Substance | Matter with a composition that is always the same |
Atom | Basic unit of matter |
Heterogeneous | A mixture that is not evenly mixed |
Element | A substance made of only one kind of atom |
Ion | An atom that has been charged because it has gained or lost electrons |
Isotope | An atom with a different number of neutrons |
Electron | The negatively charged particle in an atom |