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Unit 3: Bonding

TermDefinition
Electron configuration the arrangement of electrons in an atom
Covalent bond a bond formed when atoms share one or more pairs of electrons
ionic bond a force that attracts electrons from one atom to another, which transforms a neutral atom into an ion
ion an atom, radical, or molecule that has gained or lost one or more electrons and has a negative or positive charge
Lewis dot structure (electron-dot notation) a structure formula in which electrons are represented by dots; dot pairs or dashes between two atomic symbols represent pairs in covalent bonds
Octet rule an atom will be most stable when surrounded by 8 electrons in the valence shell (outer most energy level)
metallic bond a bond formed by the attraction between positively charged metal ions and the electrons around them
conductivity Material that is able to conduct electricity
polar describes a molecule in which the positive and negative charges are separated
nonpolar a covalent bond in which the bonding electrons are equally attracted to both bonded atoms
bent 2 atoms bonded to central atom 1 lone pairs of electrons
tetrahedral 4 atoms bonded to central atom 0 lone pairs of electrons
trigonal planar 3 atoms bonded to central atom 0 lone pairs of electrons
linar 2 atoms bonded to central atom 0 lone pairs of electrons
valence electrons the electron that is found in the outermost shell of an atom and that determines the atom's chemical properties
formula unit the simplest collection of atoms from which an ionic compound's formula can be written
polyatomic ion an ion made of two or more atoms
VSEPR theory a theory that predicts some molecular shapes based on the idea that pairs of valence electrons surrounding an atom repel each other
Created by: Laysia
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