Can someone explain this to me, please? A stable sodium atom has 11 electrons. The sodium isotope has:
A.) How many protons?
B.) How many neutrons?
C.) An atomic number of what?

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.

intermolecular forces are the forces between molecules or particles.

there are two kinds of van der waals forces: weak london dispersion forces and stronger dipole-dipole forces.

in molecule of water there are dipole-dipole forces between negatively charged oxygen from one molecule of water and positively charger hydrogen of another molecule of water.

hydrogen bond is an electrostatic attraction between two polar groups that occurs when a hydrogen atom (h), covalently bound to a highly electronegative atom such as flourine (f), oxygen (o) and nitrogen (n) atoms.