You may choose answer "e" if no correct answer is found.
 

How many valence electrons are in one atom of the representative element with the electron configuration 1s22s22p63s23p64s23d104p1? a. 1     b. 3     c. 11     d. 13	Elements in groups IA and VA of the periodic table would, respectively, be expected to form ions with charges of: a. +1 and +5 b. -1 and -5 c. +1 and +3 d. +1 and -3
The electron configuration for a Ca2+ ion is a. 1s22s22p63s23p6 b. 1s22s22p63s23p64s2 c. 1s22s22p63s23p64s24p2 d. 1s22s22p63s23p64s23d104p6	The electron configuration 1s22s22p63s23p6 fits all of the following ions except one. The exception is: a. P3- b. K+ c. Cl- d. Mg2+
Which of the following pairs of elements would most likely form an ionic compound? a. C and O b. Br and Cl c. Li and P d. N and F	What is the correct chemical formula for a compound that contains Ca2+ and NO3- ions? a. Ca2NO3 b. Ca2NO3 c. Ca(NO3)2 d. Ca2(NO3)2
Which of the following statements concerning differences between ionic and covalent compounds is correct? a. Covalent compounds contain two elements and ionic compounds contain three or more elements. b. Ionic compounds contain oxygen and covalent compounds do not. c. Ionic compounds contain a metal ion or a positive polyatomic ion and covalent compounds do not contain ions. d. Ionic compounds possess a molecular structural unit and covalent compounds do not.	The total number of "shared electron pairs" in the molecule H2O (HOH) is a. 1     b. 2     c. 4     d. 8
Indicate the total number of electrons which would be shown as "dots" in a correctly written electron dot structure for CO2 (OCO). a. 6 b. 10 c. 16 d. 22	Which of the following molecules contains a triple covalent bond? a. Br2 b. HCN c. CO2 (OCO) d. HCl
Which of the following general statements concerning covalent bond characteristics is incorrect? a. triple bonds are shorter than single bonds b. triple bonds are stronger than single bonds c. double bonds are longer than single bonds d. double bonds are stronger than single bonds	Which of the following statements concerning coordinate covalent bonds is correct? a. One of the atoms involved must be a metal and the other a nonmetal. b. Both atoms involved in the bond contribute an equal number of electrons to the bond. c. Once formed, they are always indistinguishable from any other covalent bond. d. They must always be single bonds.
Which of the following compounds contains both ionic and covalent bonding? a. Na3N b. NaCN c. N2O5 d. Cl2O7	The geometry associated with three groupings of electrons about a central atom in a molecule is a. tetrahedral b. trigonal pyramidal c. trigonal planar d. angular
The geometry of a molecule in which the central atom has 3 bonding and 1 nonbonding electron pairs is a. linear b. angular c. trigonal planar d. trigonal pyramidal	The molecular shape (geometry) of a H2S molecule is a. linear b. angular c. trigonal pyramidal d. trigonal planar
The molecular shape (geometry) of a CO2 molecule is a. linear b. angular c. trigonal planar d. tetrahedral	Electronegativity is a concept that is useful along with other concepts in a. predicting the polarity of a bond b. deciding how many electrons are involved in bonding c. deciding if double bonds are present in a molecule d. formulating a statement of the octet rule
Which of the following sets of elements is arranged in order of decreasing electronegativity? a. Cl, S, Se, Te b. F, B, O, Li c. Br, Cl, S, P d. Be, B, C, N	Which of the following is a nonpolar molecule containing polar bonds? a. HCN b. CO2 c. HCl d. N2