Answer:
The number of protons is equal to the mass number of the element. Since an element always has a different number of protons, the mass can indicate how many neutrons are in an isotope. Atoms of the same element can have a different number of neutrons. There are three naturally-occurring isotopes of carbon.
Explanation:
Explanation:
first one because absolute dating is a thing for rock layers
Identify<span> each </span>bond<span> as either </span>polar<span> or nonpolar.</span>
Answer:
1. The graph where x axis and y axis are present is called coordinate.
4. 18