How many neutrons are there in an atom of uranium whose mass number is 235?
A) 92
B) 143
C) 235
D) 238
E) 327
Correct Answer:
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Q3: An anion is defined as
A) a charged
Q4: Which of the following scientists developed the
Q10: Two isotopes of an element differ in
Q14: The scientist who determined the magnitude of
Q17: In a cathode ray tube
A) electrons pass
Q20: Atoms of the same element with different
Q26: An oxide ion, O2-, has:
A) 8 protons
Q29: A magnesium ion, Mg2+, has
A) 12 protons
Q30: An aluminum ion, Al3+, has:
A) 13 protons
Q34: Which one of the following elements is
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