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10 Cards in this Set
- Front
- Back
Acid
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a substance which can form hydrogen ions (H+) in solution
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alkali
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a base that is soluble in water
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atom
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particles too small to see, that make up all matter
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base
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a substance which can form hydroxide ions (OH-) in solution
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chemical bond
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an attractive force between atoms holding them together
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compound
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a pure substance that contains atoms of 2 or more elements combined in a fixed ratio
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electron
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a tiny negatively charged particle found in the space around a nucleus
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indicator
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a substance that turns different colours in acid and basic solutions
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ion
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an atom or group of atoms that has a positive or negative charge
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isotopes
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atoms of the same element that have different numbers of neutrons
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