1. Which of the following is true regarding a typical atom? (1.5 mark)
a) Neutrons and electrons have the same mass.
b) The mass of neutrons is much less than that of electrons
c) Neutrons and protons together make the nucleus electrically neutral
d) Protons are more massive than electrons
2. In mass spectrometer, the sample that has to be analyzed is bombarded with which
of the following? (1.5mark)
a) Protons
b) Electrons
c) Neutrons
d) Alpha particles
3. Mass spectrometer separates ions on the basis of which of the following? (1.5mark)
A. Mass
B. Charge
C. Molecular weight
9. Mass to charge ratio
The procedure for mass spectroscopy starts with which of the following
a.Mass
b.charge
c.molecular weight
d.mass to charge ratio​