The Nature of Covalent Bonding

stable electronWhen atoms share electrons to gain the_______configuration of a noble gas, the bonds formed are covalent
sharedA______pair of valence electrons constitutes a single covalent bond
unshared pairsPairs of valence electrons that are not shared between atoms are called________

double/tripleSometimes two or three pairs of electrons; this is a________
coordinate covalent bondIn some cases, only one of the atoms in a bond provides the pair of bonding electrons; this is a_________
Energy_______is required to break the bond between two covalently bonded atoms
bond dissociation energyThe total energy required to break the bond between two covalently bonded atoms is known as the___________
resonance structureWhen it its possible two wrote two or more valid electron dot formulas for a molecule or ion, each formula is referred to as a ______
Not trueThe modern interpretation of resonance is that electron pairs rapidly flip back and forth between the various electron dot structures
Always TrueThe compound NH3 contains two double covalent bonds
Sometime trueThe chemical formulas of molecular compounds show the number and type of atoms in each molecule
Not trueA molecule of bromine has six unshared pairs of electrons
Always trueCarbon forms four single covalent bonds with other atoms
Not trueA bond in which one atom contributes both bonding electrons is called polyatomic covalent bond
Single covalent bondtwo atoms held together by sharing a pair of electrons
Structural formularepresents the covalent bonds by dashes and shows the arrangement of covalently bonded atoms
Unshared paira pair of valence electrons that is not shared between atoms
Double covalent bonda bond that involves two shared pairs of electrons
Triple covalent bonda bond formed by sharing three pairs of electrons
Coordinate covalent bonda covalent bond in which one atom contributes both bonding electrons
Polyatomic iona tightly bound group of atoms that has a positive or negative charge and behaves as a unit
Bond dissociation energythe energy required to break the bond between two covalently bonded atoms
Resonance structureone of the two or more equally valid electron dot structures of a molecule or polyatomic ion

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