Grade 9 CHEMISTRY - ATOMS, ELEMENTS, MOLECULES, COMPOUNDS AND MIXTURES
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Flashcards covering vocabulary from the lecture notes on Atoms, Elements, Molecules, Compounds, and Mixtures.
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6 Terms
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Matter
Everything around you that has mass and takes up space (has volume).
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Atoms
The smallest unit of matter.
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Atoms
Tiny particles that make up all matter. The atoms of each element are unique and identical to each other.
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Protons
Positively charged particles found in the nucleus of an atom.
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Neutrons
Neutral particles found in the nucleus of an atom, similar in size and mass to protons but carry no charge.
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Electrons
Negatively charged particles, much smaller than protons and neutrons, that surround the atomic nucleus.
Note 
Flashcards (127)