The relationship between an element's isotope and an element's atomic mass are related by...?

Chemistry

2 answers:

DerKrebs [107]2 years ago

7 0

The number of protons

koban [17]2 years ago

5 0

Answer:

Together, the number of protons and the number of neutrons determine an element's mass number. Since an element's isotopes have slightly different mass numbers, the atomic mass is calculated by obtaining the mean of the mass numbers for its isotopes.

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Otrada [13]

Answer:

Option 3. The catalyst does not affect the enthalpy change ( $\Delta H_\text{rxn}$ ) of a reaction.

Explanation:

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