Untitled Flashcards

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covalent bond

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A chemical bond formed when electrons are shared between two atoms

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proton

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a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge equal in magnitude to that of an electron, but of opposite sign

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electron

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a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids

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valence electrons

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electrons in the outermost shell of an atom, and that can participate in the formation of a chemical bond if the outermost shell is not closed

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electronegativity

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the tendency for an atom of a given chemical element to attract shared electrons when forming a chemical bond

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polar

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having electrical or magnetic polarity.

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hydrogenbonds

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1. a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.

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cohesion

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the sticking together of particles of the same substance.

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non polar

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molecules that do not have any electrical charges or partial charges. Nonpolar molecules are made of atoms that have a similar value of electronegativity.

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buoyancy

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the ability or tendency to float in water or air or some other fluid