Answer:
Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons. The difference in the number of neutrons between the various isotopes of an element means that the various isotopes have different masses.
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If a freezer is not cold, maybe the condenser coils are dirty. You should clean these every 6-12 months. If not check the evaporator fan motor, it draws air over the evaporator coil and circulates it through the freezer. Your last option is to start relay, the start relay provides power to the compressor. Hope this helped!
