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Definition
the study of the properties of substances and how they react
with one another. |
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Definition
physical material from which
something is made. |
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Definition
rearrangement of atoms in a
substance to make a new
chemical substance. |
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Definition
the smallest particle of matter that cannot be broken down by chemical means. An atom is made up of a nucleus of protons and neutrons, surrounded by a cloud of electrons. |
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Definition
a type of elementary particle that
has a positive electrical charge and
is found in the nucleus of all atoms. |
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Definition
a particle of an atom that has
no electrical charge and
is found in the nucleus of all atoms. |
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Definition
a stable, negatively charged particle found in all atoms. |
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Term
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Definition
| a fundamental property of matter. Protons and the nuclei of atoms have a positive charge, electrons have a negative charge, and neutrons have no charge. Normally, each atom has as many protons as electrons and thus has no net electrical charge. In other words, the atom is neutral. |
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Term
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Definition
the central part of an atom, made up of protons and neutrons. |
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Term
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Definition
a process in which two nuclei or nuclear particles collide to produce products different from the initial particles. |
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