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Chapter 2 The Chemistry of Microbiology




Question;1);Which of the following is a particle that is found in the nucleus of an atom;and has no electrical charge?;A);electron;B);neutron;C);element;D);proton;E);isotope;2);An atom of carbon that has six protons and seven neutrons is an example of a(n);A);isotope.;B);radioactive isotope.;C);molecule.;D);compound.;E);dalton.;3);An atom is electrically neutral when;A);the number of electrons equals the number of neutrons.;B);the numbers of its protons, electrons, and neutrons are all equal.;C);it has no extra electrons in its valence shell.;D);the number of protons equals the number of neutrons.;E);the number of electrons equals the number of protons.;4);Which parts of the atoms interact in a chemical reaction?;A);protons;B);neutrons;C);ions;D);electrons;E);isotopes;5);All of the following are associated with atomic structure EXCEPT;A);valence.;B);dalton.;C);monomer.;D);electron shell.;E);neutron.;Answer: C;Bloom's;Rank: Comprehension;Section: Organic Macromolecules;6);The valence of an atom represents its;A);ability to interact with other atoms.;B);electronegativity.;C);radioactivity.;D);ability to attract electrons.;E);ability to interact with water.;7);The type(s) of bond produced when atoms share electrons equally is/are;A);a nonpolar covalent bond.;B);a hydrogen bond.;C);an ionic bond.;D);a polar covalent bond.;E);polar covalent and ionic bonds.;8);The type(s) of bond produced when atoms with significantly different;electronegativities share electrons is/are;A);a nonpolar covalent bond.;B);a polar covalent bond.;C);an ionic bond.;D);a hydrogen bond.;E);nonpolar covalent and ionic bonds.


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