small center of the atom that contains protons and neutrons
the large volume of the atom that contains only electrons
the number of protons in an atom.
a bond between polar molecules such as water......oil is non polar
the attractive force that depends on gravity and mass
a substance with large heavy particles, a fixed shape and volume
a substance with some attraction between the particles , and a fixed volume but changeable shape
a substance with light particles and little or no attractive forces between them
substance particle with a positive charge
subatomic particles with a neutral charge and a mass of 1
subatomic particle with a negative charge and almost no mass
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