Chapter 2 - Structure of Atoms

Structure of Atoms

Quiz

 

1. Which subatomic particle has a negative charge?
   1.   Proton
   2.   Neutron
   3.   Electron
   4.   Nucleus
2. Who proposed the plum pudding model of the atom?
   
   1.   Ernest Rutherford
   2.   J.J. Thomson
   3.   Niels Bohr
   4.   John Dalton
3. The number of protons in an atom determines its:
   1.   Atomic mass
   2.   Atomic number
   3.   Isotopic mass
   4.   Atomic weight
4. The mass number of an atom is determined by the sum of:
   1.   Protons and neutrons
   2.   Electrons and protons
   3.   Neutrons and electrons
   4.   Protons and electrons
5. Who proposed the nuclear model of the atom?
   1.   J.J. Thomson
   2.   Ernest Rutherford
   3.   Niels Bohr
   4.   Dalton
6. Isotopes of an element differ in their number of:
   1.   Protons
   2.   Neutrons
   3.   Electrons
   4.   Nucleons
7. The atomic number of an element is equal to the number of:
   
   1.   Electrons in the outermost shell
   2.   Neutrons in the nucleus
   3.   Protons in the nucleus
   4.   Electrons in the atom
8. The nucleus of an atom is composed of:
   
   1.   Protons and neutrons
   2.   Protons and electrons
   3.   Neutrons and electrons
   4.   Neutrons and photons
9. Which of the following statements about electrons in an atom is correct?
   
   1.   Electrons have a positive charge.
   2.   Electrons are located in the nucleus.
   3.   Electrons determine the chemical properties of the element.
   4.   Electrons have a mass equal to protons.
10. The Bohr model of the atom explains:
    1.   The arrangement of electrons in shells around the nucleus.
    2.   The existence of isotopes.
    3.   The behavior of neutrons in the nucleus.
    4.   The emission of alpha particles.