The atomic particle having a mass of 0 amu and a charge of -1 is
A) an electron
B) a neutron
C) an alpha particle
D) a proton
E) none of these
Correct Answer:
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Q10: A sample of a radioactive element decays
Q11: A particular radioactive isotope has a half-life
Q12: The element curium (Z = 242, A
Q13: Complete the table for these radioactive particles:
Name
Charge
Mass
Q14: The cesium-137 nuclide has a half-life of
Q16: Polonium is a radioactive isotope which decays
Q17: Alpha particles are
A) electrons
B) protons
C) neutrons
D) helium
Q18: Lithium-8 is a beta producer. The product
Q19: The half-life of a radioactive nuclide is
A)
Q20: Atoms that have identical atomic numbers but
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