Answer:
Radio waves
Explanation:
Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.
A conductor of electricity
A. isotopes only hve different mass which is caused by additional/lesser neutron. protons and electrons number are fixed
The answer would be mesons.
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