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16 Cards in this Set
- Front
- Back
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Atoms |
fundamental particles of matter |
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Nucleus |
composed of protons and neutrons |
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Protons |
a positively charged particle that defines element |
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Neutrons |
particles of large mass |
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Atomic Number |
The number of protons |
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Atomic Mass |
number of neutrons + number of protons |
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Isotope |
an atom of an element that has greater or fewer neutrons than the common atom of that element |
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Molecule |
2 or more atoms bound together |
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Element |
A pure substance consisting of only one type of atom ex: H2 |
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Compound |
substance consisting of molecules made up of different types of atoms Ex: H2O |
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Covalent Bonds |
"Sharing" of electrons |
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Ionic Bonds |
"give and take" of electrons |
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Hydrogen bonds |
(some atoms just can't get enough electrons) |
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Organic Substances |
Products or byproducts of living organisms |
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Inorganic Substances |
compounds obtained from minerals |
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