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10 Cards in this Set
- Front
- Back
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Atom |
Smallest unit of an element that retains the unique properties of the element |
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Ion |
A atom that lost or gained an electron giving it a positive or negative charge |
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Isotopes |
An atom that contains a different number of neutrons then it normally would |
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Radioactive isotope |
An unstable isotope of an element that decomposes spontaneously by emission of subatomic particles of radiation |
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Electron shell |
The area around the nucleus where the electrons have their most likely position |
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Molecule |
The smallest unit of a compound that retains the properties of the compound |
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Chemical bond |
2 atoms that are sharing or transferring electrons between them |
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Polar molecule |
Opposite charged ends |
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Ionic bond |
Formed when electrons are transferred from one atom to another, usually framed with 2 atoms those with fewer then 2 electrons in their outer shell and those with nearly full outer shells |
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Covalent bond |
A strong chemical bond framed when atoms share electrons |
