In the symbol below, x is __________. 
C
A) the number of neutrons
B) the atomic number
C) the mass number
D) the isotope number
E) the elemental symbol
Correct Answer:
Verified
Q6: Cathode rays are deflected away from a
Q11: In the Rutherford nuclear-atom model,_.
A)the heavy subatomic
Q12: Consider the following selected postulates of Dalton's
Q17: Cathode rays are _.
A)neutrons
B)x-rays
C)electrons
D)protons
E)atoms
Q21: In the symbol shown below, x =
Q23: An atom of the most common isotope
Q23: The nucleus of an atom does not
Q24: Which isotope has 45 neutrons?
A) 
Q25: Isotopes are atoms that have the same
Q26: Which combination of protons, neutrons, and electrons
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