19 terms


ionic bond
a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion
covalent (molecular) bond
a chemical bond that involves sharing a pair of electrons between atoms in a molecule
potential energy well
a region in which an object has a lower potential energy than in all the surrounding regions.
polar bond
A type of covalent bond between two atoms in which electrons are shared unequally.
octet rule
rule that states that atoms tend to combine in such a way that they each have eight electrons in their valence shells, giving them the same electronic configuration as a noble gas
molecular formula
formula that shows the number and kinds of atoms in a molecule
ionic formula unit
1 calcium ion and 2 chloride ions
structural formula
A chemical formula that shows how the atoms and bonds in a molecule are arranged
empirical formula
chemical formula that indicates the relative proportions of the elements in a molecule rather than the actual number of atoms
VSEPR model
A model used to predict the shape of a molecule, based on the assumption that all negatively charged valence electrons repel each other.
resonance structure
Any of two or more possible structures of the same compound that have identical geometry but different arrangements of their paired electrons
metallic bond
The chemical bond characteristic of metals, in which mobile valence electrons are shared among atoms in a usually stable crystalline
orbital hybridization
a procedure whereby orbitals of intermediate energy and desired directional character are constructed.
intermolecular force
the force between two molecules
a molecule that has two poles (negative & positive)
hydrogen bond
a chemical bond in which a hydrogen atom of one molecule is attracted to an electronegative atom, especially a nitrogen, oxygen, or flourine atom, usually of another molecule
London forces
Very weak and very short-range attractive forces between short-lived temporary (induced) dipoles
transient dipole
an electron-rich structure. chances of cloud being symmetric are low
induced dipole
short-lived, temporary dipole