atoms held together by sharing electrons are joined together by this.
What are Covalent Bonds?
100
known as a lone pair or a nonbonding pair
What is unshared pair?
100
orbitals that apply to the entire molecule
What are molecular orbitals?
100
a covalent bond between atoms in which the electrons are shared unequally
What is a polar covalent bond?
200
the attractions of FREE FLOATING valence electrons for the positively charged ____ ions
What are Metallic Bonds?
200
A neutral group of atoms joined together by covalent bonds
What is a Molecule?
200
a tightly bound group of ATOMS that has a positive or negative charge and behaves as a unit
What is polyatomic ion?
200
molecular orbital that can be occupied by two electrons of a covalent bond
What is a bonding orbital?
200
occur when polar molecules are attracted to one another. much weaker than ionic bonds, VS. the weakest of all molecular interactions caused by the motion of electrons.
What is dipole interactions VS. dispersion forces
300
Mixtures composed of two or more elements at least one of which is a metal.
What are Alloys?
300
a compound composed of molecules
What is molecular compound?
300
a covalent bond in which one atom contributes both bonding electrons
What is a coordinate covalent bond?
300
when two atomic orbitals combine to form a molecular orbital that is symmetrical around the axis connecting the two atomic nuclei
What is a sigma bond?
300
attractive forces in which a hydrogen covalently bonded to a very electronegative atom is weakly bonded to an unshared pair of another electronegative atom
What is a hydrogen bond?
400
the number of ions of opposite charge that surround the ion in a crystal
What is an ions Coordination Number?
400
a molecule consisting of two atoms
What is a diatomic molecule?
400
a structure that occurs when it is possible to draw two or more pairs for a molecule or ion
What is resonance structure?
400
the repulsions between electron pairs causes molecular shapes to adjust so that the valence-electron pairs stay as far apart as possible
What is the VESPR theory?
400
A molecule that has two poles
What is a dipolar molecule?
500
the lowest whole-number ratio of the ions in an ionic compound
What is a Formula unit?
500
chemical formula of a molecular compound
What is molecular formula?
500
the energy required to break the bond between two covalently bonded aroms
What is bond dissociation energy?
500
several atomic orbitals mix to form the same total number of equivalent hybrid orbitals.
What is hybridization?
500
solids in which all of the atoms are covalently bonded to each other