<span>Potassium and rubidium as they are in the same periodic table group as Na</span>
They travel linearly.
They have a negative electric charge.
They have particle property.
Magnets can deflect them.
Charge/mass ratio of the rays is constant.
They travel from the cathode to the anode.
Their properties are independent from the electrodes and gas present in the cathode ray tube.
A chemical has changed into a different state
