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.
Explanation:
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During transcription, the new mRNA is created from a single strand of a DNA template. As it elongates, it then peels away from template.
True, maria are dark, smooth, <em>flat </em>surfaces on the moon.
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The instrument that records and measures the seismic waves during an earthquake is a seismograph. It uses the vibration propagated by from the earthquake source's energy. It mainly uses a suspended pen that records the motion between itself and the paper film.