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16 Cards in this Set
- Front
- Back
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Atom
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smallest particle of an element.
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Nucleus
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Positively charged central core of atom.
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Electron
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Negative charged, fundamental particle.
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Proton
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Positively charged particle.
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Neutron
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Neutral, uncharged particle
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Molecule
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smallest unit of a covalent compound
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Ion
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Charged atom
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Anion
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negative ion
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Cation
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positive ion
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Bond
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Attractive force that holds atoms together
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Valence electrons
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outermost electrons involved in bonding
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Subatomic Particle
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electron, neutron, proton
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Molecular Formula
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Actual ratio of atoms in a molecule
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Nucleon
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neutron, proton
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Element
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Substance that can not be broken down (decomposed) by ordinary chemical means
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Compound
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Composed of 2 or more elements chemically combined
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