The quantity (mass number - atomic number) provides:
A) the number of neutrons in a nucleus
B) the number of electrons in the atom
C) the number of protons in a nucleus
D) the combined number of all the neutrons and all the protons in a nucleus
Correct Answer:
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Q5: Two atoms must represent the same element
Q6: Mercury-202 has how many neutrons in its
Q7: Uranium-235 has how many protons in the
Q8: Adding one proton to the nucleus of
Q9: Adding one neutron to the nucleus of
Q11: The mass number is:
A)the sum of protons
Q12: How many neutrons are in a neutral
Q13: Isotopes have the:
A)same number of protons but
Q14: A hypothetical element contains three isotopes of
Q15: Which of the following represents a pair
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