Bonding Flashcards
Ionic bonds
Occur between a metal cation and a nonmetal anion, and they share electrons
Formula unit
Neutral group of atoms joined by ionic bonds, and the lowest whole number ratio of ions in a compound
Chemical formula
Indicates the number and charge of the atoms in a substance
Polyatomic ions
Ions made of more than one atom
Covalent bonds
Occur between 2 nonmetals, is the sharing of electrons
Molecule
Neutral group of atoms joined by covalent bonds
Single bond
Sharing of 1 pair of electrons
Double bond
Sharing of 2 pairs of electrons
Triple bond
Sharing of 3 pairs of electrons
Metallic bonding
Occurs between 2 metals, electrons are held in the “sea of electrons”
Intermolecular forces of attraction
Attractive forces between molecules
Intramolecular forces of attraction
Attractive forces within a molecule, true chemical bonds
Dipole forces
Intermolecular forces between 2 polar molecules with dipole movements
Hydrogen bonding
Intermolecular forces between hydrogen and highly electronegative oxygen, nitrogen, or fluorine (both molecules must have dipole-dipole forces)
London dispersion forces
Weak intermolecular forces between 2 nonpolar molecules, larger mass molecules have a greater amount of this force