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Chapter 6 Sec 1 & 2 Vocabulary

Terms in this set (17)

chemical bond
the attractive force that holds atoms or ions together
ionic bonding
a force that attracts electrons from one atom to another, which transforms a neutral atom into an ion
covalent bonding
a bond formed when atoms share one or more pairs of electrons
nonpolar covalent bond
a covalent bond in which the bonding electrons are equally attracted to both bonded atoms
polar
describes a molecule in which the positive and negative charges are separated
polar covalent bond
a covalent bond in which a pair of electrons shared by two atoms is held more closely by one atom
molecule
the smallest particle of a substance that has all of the chemical properties of that substance; a molecule is made up of one atom or two or more atoms bonded together
molecular compound
a chemical compound whose simplest units are molecules
chemical formula
a combination of chemical symbols and numbers to represent a substance
molecular formula
a chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of the atoms
bond energy
the energy required to break the bonds in 1 mol of a chemical compound
electron dot notation
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 element's symbol
Lewis structure
a structural formula in which electrons are represented by dots; dot pairs or dashes between two atomic symbols represent pairs in covalent bonds
structural formula
a formula that indicates the location of the atoms, groups, or ions relative to one another in a molecule and that indicates the number and location of chemical bonds
single bond
a covalent bond in which two atoms share one pair of electrons
multiple bond
a bond in which the atoms share more than one pair of electrons, such as a double bond or a triple bond
resonance
the bonding in molecules or ions that cannot be correctly represented by a single Lewis structure
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