1.     What is the basic unit of matter that forms an element?
a.     Atom                     b. Electron                c. Proton                   d. Neutron
 
2.     Which of the following particles are found inside the nucleus of an atom?
a.     Neutrons and Electrons
b.     Protons and Electrons
c.     Neutrons and Protons
d.     Protons and Muons
 
3.     Which of the following is a negatively charged particle?
a.     Proton                   b. Electron                c. Neutron                d. Muon
 
4.     Which of the following is a positively charged particle?
a.     Proton                   b. Electron                c. Neutron                d. Muon
 
5.     What is the electrical charge of the nucleus of an atom?
a.     Positive                b. Negative               c. Zero                      d. can’t determine
 
6.     Who is the proponent of the Plum pudding model and the discoverer of electrons?
a.     Ernest Rutherford
b.     Joseph John Thomson
c.     Eugene Goldstein
d.     Democritus
 
7.     Compared to the charge and mass of a proton, an electron has _______________?
a.     the same charge and a smaller mass.
b.     the same charge and the same mass.
c.     opposite charge and smaller mass.
d.     opposite charge and the same mass.
 
8.     What is the mass of a neutron?
a.     about equal to the mass of a proton.
b.     much less than the mass of a proton.
c.     about equal to the mass of an electron.
d.     much less than the mass of an electron.
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