Respuesta :
Answer:
Most common has the same or closest mass because it is closer to the original’s mass.
Explanation:
I got it from the answer key
- An isotope in the simplest form occurs when more than one atom have exactly the same atomic number.
- Another way of putting it is that they are chemical compounds that share the same element but have non-identical masses.
- There are basically two types of isotopes which include:
- Stable Isotopes are isotopes that do not emit radiation. Some examples include oxygen, carbon, hydrogen, etc
- Radioactive/ Non Stable Isotopes are those isotopes which are radioactive or emit radiation. Some examples include uranium-238, bismuth, etc.
- Therefore, isotopes can occur either naturally or as a result of radioactive decay.
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