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chapter 6

QuestionAnswer
electron dot diagram a model of an atom in which each dot represents a valence electron
diagram a chart, plan, or scheme.
ion an atom that has a net positive or negative electric charge is called a ?
anion an ion with a negative charge is an ?
cation an ion with a positive charge is a ?
chemical bond is the force that holds atoms or ions together as a unit.
ionic bond is the force that holds cations and anions together.
chemical formula is a notation that shows what elements a compound contains a ratio of the atoms or ions of these elements in the compound.
crystals solids whose particles are arranged in a lattice structure are called ?
when is an atom unlikely to react? when the highest occupied energy level of an atom is filled with electrons, the atom is stable and not likely to react.
what is one way in which elements can achieve stable electron configuration. some elements achieve stable electron configurations through the transfer of electrons between atoms.
how does the structure of an ionic compound affect its properties. the properties of an ionic compound can be explained by the strong attraction among ions within a crystal lattice.
covalent bond is a chemical bond in which two atoms share a pair of valence electons.
molecule is a neutral group of atoms that are joined together by one or more covalent bonds.
polar covalent bond a covalent bond in which electrons are not shared equally is called a
how are atoms held together in a covalent bond? the attractions between the share electrons and the protons in each nucleus holds the atoms together in a covalent bond.
what happens when atoms don't share electrons equally ? when atoms form a polar covalent bond , the atom with the greater attraction for electrons has partial negative charge. the other atom has a partial positive charge.
what factors determine whether a molecule is polar? the type of atoms in a molecule and its shape are factors that determine whether a molecule is the polar or non-polar
how do attractions between polar molecules compare to attractions between non-polar molecules. attractions between polar molecules are stronger than attractions between non-polar molecules.
Created by: josephgeick08
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