Give short definitions for the following terms: 1. all atomic number 2. mass number 3. atomic weight 4. isotope 5. natural abundance 6. atomic mass unit

Explanation:

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1-atomic number: the atomic number is the number of protons that the atom has

2-mass number: is the amount of protons plus the amount of neutrons in the atom

3-atomic weight: average of the masses of an atom per 1/12 of the mass of carbon

4-isotope: it is the same element that has the same number of protons but a different number of neutrons

5-natural abundance: measures the amount of isotopes of an element in nature

6-unit of atomic mass: (uma) is a unit that is equivalent to 1/12 of the carbon atom

answer: 0.20

explanation: this can only be the answew because all the other measuremnets are not close

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