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20 Cards in this Set
- Front
- Back
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Chemistry |
Concerned with atomic composition and structure of substance and the reactions they undergo |
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Matter |
Anything that occupies space and has mass |
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Mass |
Amount of matter in an object |
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Weight |
Gravitational force acting on a object |
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Element |
Simplest type of matter having unique properties |
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Atom |
Smallest particle of an element neutrons |
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Protons |
Positive charge |
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Electron |
Negative charge |
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Nucleus |
Formed by protons and neutrons. |
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Electron cloud |
Where electrons are mostly likely to be found |
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Atomic number |
No. Of protons in each atom. |
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Mass Number |
No. of protons + No. of neutrons |
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Chemical Bonding |
Electrons are transferred or shared between atoms |
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Ionic bond |
Electrons are transferred |
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Covalent bond |
Electron are shared |
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Polar covalent bond |
Unequal, asymmetrical sharing of electron |
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Polar molecules |
Molecules with symmetrical electrical charge |
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Non polar covalent bond |
Equal sharing of electrons bet. atoms |
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Non polar molecules |
Molecules with symmetrical elctrical charge |
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Hydrogen bond |
Weak attraction bet. The oppositely charged regions of polar molecules |
