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5
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Represents compounds.
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6
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An electrical force of attraction between two atoms.
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7
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Change in matter that produces one or more new substances. Also called a chemical reaction.
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11
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A number placed in front of a chemical formula in an equation. It tells you the amount of reactant or product in the reaction.
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12
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Substances made of two or more elements that combine chemically in a set ratio.
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13
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Any change that alters the form or appearance of a substance, but does not change it to another substance.
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14
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Found within the nucleus.It is small two charged particle that moves around the outer sphere of an atom.
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1
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A group of two or more atoms held together by a chemical bond.
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2
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Substances that undergo a chemical change.
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3
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The new substance that forms from a chemical change.
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4
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The smallest unit of an element. All matter is made up of them.
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5
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A way to show a chemical reaction using symbols instead of words.
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8
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A small particle inside an atom's nucleus that is not electrically charged.
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9
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A substance that cannot be broken down into any other substance by chemicals or physical means.
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10
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A very small particle inside an atom's nucleus, or central core. It has a positive charge.
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