chemical bonding
the atractive force that acts between two or more atoms to hold them together as a stable molecule
atom
basic unit of matter, the smallest amount of an element
molecule
two or more atoms that are chemically joined together
element
a basic substance that cant be simplified, all atoms have the same proton number
compund
a molecule that contains more than one element
bond energy
is the measure of bond strength in a chemical bond, it is the energy required to break one mole molecules into their individual atoms
bond length
bond distance, is the average distance between nuclei of two bounded atoms in a molecule
electronegativity
is a measure of the attraction of an atom in a molecule for the electron pair in the covalent bond
non-polar covalent
bonding electrons shared equally between 2 atoms, no charges on atoms
polar covalent
unequally shared electrons, partial charges on atoms
ionic bond
complete transition of one or more valence electrons, full charges on resulting
similar electronegativity
will form pure non-polar covalent bonds
different electronegativity
will form polar covalent bond
widely differ electron.
ionic bond
dative covalent bond
type of covalent bond in which both electrons came from the same atom
donor
of lone pair
acceptor
of lone pair it has empty orbital
ionic bonding
the electrostatic attraction between oppositely charged ions, electrons are transferred between valence shells of atoms
ionic compounds
made of ions, giant lattice structure made up of positive metal ions and negative usually non metal ions
metallic bonding
lattice of positive ions surrounded by delocalized electrons, electrostatic attraction between positive ions and delocalized electrons
intramolecular forces
forces which act between neighboring molecules, influence the boiling and melting point of a intermolecular substance, the stronger the force the higher the m and b point, hydrogen bond and van der waals forces
van der waals forces
weaker than hydrogen bond, forces between: permanent dipoles(polar molecules), permanent dipole and corresponding included dipole, instantaneously included dipoles(non-polar molecule)
covalent bonding
formed when 2 orbitals overlap,