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10 Cards in this Set
- Front
- Back
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Atom |
The fundamental building block of all materials; it consists of a cluster of protons and neutrons surrounded by a cloud of electrons. |
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Atomic Model |
Scientists' representation of an atom determined by experiment and indirect observation. |
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1) Atomic Number 2) Atomic Symbol 3)Atomic Mass (Mass Number) |
1) The number of protons in a nucleus; the atomic number determines what type of atom it is. 2) A short-hand notation for describing an atom; it consists of the chemical symbol, atomic number, and mass number. 3) The number of protons and neutrons is an atom. |
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Compound |
A pure substance that is made up of two or more different types of atoms chemically joined. |
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Crystal Lattice |
A grid-like structure of atom or irons where each particle is bonded to al of its neighbouring atoms. |
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Electrons |
A small, negatively charged particles; clouds of electrons surround the nucleus of an atom. |
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Electron Configuration |
The number of electrons in each of the electron shells of an atom |
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Electron Shell |
Part of the electron cloud; it is a layer that surrounds the nucleus and can only hold a certain number of electrons. |
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Element |
A substance made up of only one type of atom. |
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Isotopes |
Atoms that have the same number of protons but a different number of neutrons in their nucleus. |
