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Mass number is O the average atomic mass of an element. O the total number of electrons in an atom of an element. O the total number of protons in an atom of an element. O the t…

Mass number is O the average atomic mass of an element. O the total number of electrons in an atom of an element. O the total number of protons in an atom of an element. O the t…
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Mass number is

O the average atomic mass of an element.
O the total number of electrons in an atom of an element.
O the total number of protons in an atom of an element.
O the total number of protons and neutrons in an atom of an element.

User Lakshay
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2 Answers

4 votes
The answer is D . Tu é man
User Sabareesh Kkanan
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6 votes

Answer:

4 th is the answer......

User Filthy
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