Which element commonly has only a proton as its nucleus?
A) helium
B) neon
C) argon
D) hydrogen
E) none of the above
Correct Answer:
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Q3: The smallest stable units of matter are
A)
Q5: Isotopes of an element differ in the
Q7: By weight, which element is the second
Q10: The "atomic weight" of an atom reflects
Q15: The mass of an atom is largely
Q18: The "atomic number" of an atom is
Q18: The mass number represents the number of
A)protons
Q18: Which of the following lists contain only
Q32: The chemical behavior of an atom is
Q37: In an aqueous solution,cations are attracted toward
A)water.
B)salt.
C)buffers.
D)anions.
E)hydrogen
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