The mass number (A) of a nuclide is equal to the number of ______________ in one of its nuclei.
A) protons plus neutrons
B) protons
C) neutrons
D) neutrons plus electrons
Correct Answer:
Verified
Q2: Who discovered the electron in 1897?
A) Ernest
Q3: The diameter of an average atom is
Q4: How many protons are there in an
Q5: What is the symbol for the element
Q6: How many electrons are there in a
Q7: The diameter of an average nucleus is
Q8: What is the symbol for the element
Q9: How many neutrons are there in an
Q10: How many nucleons are there in an
Q11: The various isotopes of an element all
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