3. Which of the following statement is true?
Mass number is the combination of proton and neutron
Mass number is the combination of electron and proton
Atomic number represents neutron number
Electrons are found in the nucleus
Answers
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5
Answer:
the total number of protons and neutrons in an atom
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0
Answer:
Mass number is the combination of proton and neutron
Explanation:
Because..
Electrons have a negligible mass
Atomic number represents proton number
Protons and neutrons are found in nucleus
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