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18 Cards in this Set
- Front
- Back
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anyhing that has mass and takes up space
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Matter
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3 States of matter
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Solid, liquid, gas
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Unique substances that cannot be broken down by oridanry chemical means.
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Elements
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Identical building blocks for each element
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Atoms
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One or two letter chemical shorthand
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Atomic sybol
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Number of Protons
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atomic number
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Protons plus neutron
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atomic mass
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4 major elements in the human body
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Carbon (C) Hydrogen (H) Oxygen (O)
Nitrogen (N) |
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nucleus consist of
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neutrons and protons
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have no charge
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neutrons
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have a positive charge
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protons
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are charged atoms resulting from the gain or loss of electrons.
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Ionic bond
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have gained one or more negitive charge
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Anions
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weak bond between molecules
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Hydrogen
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have lost one or more positive charge
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Cations
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Electrons are shared equally
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Covalent
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Nonpolar
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Electrons shared equally between atoms
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Polar
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Unequal sharing of electrons
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