how does a van der waals force arise?
instantaneous dipoles are formed between slightly negative and slightly positive molecules,
induces dipoles in neighbouring molecules.
a permanent dipole induces a dipole in neighbouring molecules
Define covalent bond
a shared pair of electrons between a non-metal and a non-metal
a shared pair of electrons between a non-metal and a metal
what is the bonding angle of a pyramidal molecule?
which one is correct in terms of repulsion
lone pair of electrons > bonded pair of electrons
lone pair of electrons