Module Four: Part M:   Multiple Choice  10 points


1.   According to the general trends in the periodic table, which of the following elements is the most electronegative?



(a) O


(b) F


(c) P


(d) S


(e) Cl



2.   Draw the electron dot formula for ethylene, C2H4, and state the type of bonds in one molecule.



(a) 6 single       bonds


(b) 5 single        bonds


(c) 4 single        bonds and 1 double bond


(d) 4 single       bonds and 2 double  bonds


(e) 4 single       bonds and 1 triple bond



3.   Magnesium metal and oxygen gas react to form the ionic compound magnesium oxide.  Which of the following statements is true?


(a) Valence electrons are transferred from oxygen to magnesium atoms.

(b) The magnesium atom and the magnesium ion have the same number of valence electrons.

(c) Magnesium and magnesium oxide have similar properties.

(d) The smallest representative particle is a molecule.

(e) none of the above



4.   Which noble gas is isoelectronic with a lithium ion?



(a) helium


(b) neon


(c) argon


(d) krypton


(e) xenon



5.   Which of the following ions has the electron configuration 1s2 2s2 2p6



(a) F1-


(b) O2-


(c) N3-


(d) all of the above


(e) none of the above


6.   What type of chemical bond results from transferring valence electrons from a metal to a nonmetal?



(a) covalent bond


(b) ionic bond


(c) metallic bond


(d) coordinate covalent bond


(e) none of the above



7.   The mercury (II) ion, Hg2+, is classified as which of the following?



(a) monoatomic cation


(b) monoatomic anion


(c) polyatomic cation


(d) polyatomic anion


(e) none of the above



8.   Aqueous H2S is classified as which of the following?



(a) binary ionic


(b) ternary ionic


(c) binary molecular


(d) binary acid


(e) ternary oxyacid



9.   What is the formula for the nitride ion?



(a) N3-


(b) N2-


(c) N1-


(d) NO21-


(e) NO31-





10.   What is the formula for the hydrogen carbonate ion?



(a) C2H3O21-


(b) C2H3O22-


(c) HCO31-


(d) HCO32-


(e) none of the above



1.b    2. c     3. e   4.a     5. d    6.b    7. a    8.d    9.a     10.c