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Unit 3:Bonding
Term | Definition |
---|---|
electron configuration | the arrangement of electrons in an atom |
covalent bond | a bond formed when atoms share one or more pairs of electron |
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 electron and has a negative or positive charge |
lewis dot structure | an electron configuration notation in which only the valence electrons of an atom of a particular element are shown , indicated by dots placed around the elements symbol |
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 seperated |
non-polar | A covalent bond in which the bonding electrons are equally attracted to both bonded atoms |
bent | 2 atoms bonded and 2 lone pairs |
tetrahedal | 4 bonded atoms and 0 lone pairs |
trigonal planner | 3 bonded atoms and 0 lone pairs |
linar | 2 binded atoms and 0 lone pairs |
valence electrons | An electron that is found in the outermost shell of an atom and that determines the atoms chemical properties |
formula unit | the simplest collection of atoms from which an ionic compounds 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 electron surrounding an atom repel each other |