Which of these particles has the smallest mass?
A) A proton
B) A neutron
C) An electron
D) A hydrogen atom
E) A hydrogen nucleus
Correct Answer:
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Q15: Which statement about electrons is incorrect ?
A)Electrons
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Q18: Determine the correct number of protons and
Q19: The number of protons in a neutral
Q20: Which of these statements about an atom
Q21: Carbon has three isotopes: 12C, 13C, and
Q22: Radon - 222 has _ protons, _
Q23: Which of these is the correct representation
Q24: Which of these statements best describes the
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