Unit 3 Study Guide - DOC

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					                                                        Unit 3 Study Guide
2.       Which of the following elements is an alkaline                             B)   7
earth metal?                                                                        C)   0
         A) Ca                                                                      D)   8
         B) Cu                                                                      E)   none of these
         C) Fe
         D) Na                                                             12.      The number of electrons in the third sublevel of an
         E) Sc                                                             iron atom is
                                                                                    A) 3
5.      Phosphorus has how many electrons in its                                    B) 6
outermost principal energy level?                                                   C) 8
        A) 1                                                                        D) 26
        B) 2                                                                        E) 56
        C) 3
        D) 5                                                               13.     All these atoms have seven electrons in their
        E) 15                                                              outermost energy levels except
                                                                                   A) H
6.      The number of unpaired electrons in a nitrogen                             B) F
atom is                                                                            C) Cl
        A) 1                                                                       D) Br
        B) 2                                                                       E) I
        C) 3
        D) 4                                                               14.      The maximum number of electrons in the second
        E) 5                                                               principal energy level of an atom is
                                                                                    A) 2
7.      The elements chlorine and iodine have similar                               B) 6
chemical properties because they                                                    C) 8
        A) are both metals                                                          D) 18
        B) are in the same chemical period                                          E) 32
        C) have the same number of electrons in their
        outer energy levels                                                15.      Which element has the fewest electrons in its
        D) have the same number of stable isotopes                         valence shell?
        E) none of these                                                            A) Cs
                                                                                    B) Mg
8.       The alkaline earth metals have how many valence                            C) P
electrons?                                                                          D) O
         A) 8                                                                       E) Br
         B) 7
         C) 3                                                              16.      How many d electrons are there in an iron atom?
         D) 2                                                                       A) 2
         E) 1                                                                       B) 3
                                                                                    C) 6
9.         Which of the following is the highest energy orbital                     D) 26
for a silicon atom?                                                                 E) 56
           A) 1s
           B) 2s                                                           17.       Which one of the following atoms has a partly
           C) 3s                                                           filled d sublevel?
           D) 3p                                                                     A) Ca
           E) 3d                                                                     B) Ni
                                                                                     C) Zn
10.      How many electrons are in the third principal                               D) As
energy level (n = 3) of one atom of Fe?                                              E) Ar
         A) 2
         B) 8                                                              24.      The electron configuration for manganese is
         C) 14                                                                      A) [Ar] 3d7
         D) 18                                                                      B) 1s22s22p63s13d6
         E) none of these                                                           C) [Ar] 4s23d5
                                                                                    D) 1s22s22p63s23d4
11.      The noble gases contain how many valence                                   E) [Ar] 4s24p5
electrons?
         A) 1
                                                                  Page 1
                                                       Unit 3 Study Guide
25.      Which of the following atoms has the electron
configuration 1s22s22p63s23p64s23d1?                                     34.      Which of the following atoms has the highest
         A) Sc                                                           ionization energy?
         B) Ca                                                                    A) Na
         C) Sr                                                                    B) Mg
         D) Ar                                                                    C) Si
         E) none of these                                                         D) P
                                                                                  E) Cl
26.      How many unpaired electrons does the element
cobalt (Co) have in its lowest energy state?                             35.      Which of the following atoms has the smallest
         A) 0                                                            atomic radius?
         B) 1                                                                     A) As
         C) 2                                                                     B) Sb
         D) 3                                                                     C) Bi
         E) 7                                                                     D) P
                                                                                  E) N
28.       How many of the following electron configurations
for the species in their ground state are correct?                       36.     Which of the following has the lowest ionization
I. Ca: 1s22s22p63s23p64s2                                                energy?
II. Mg: 1s22s22p63s1                                                             A)    Se2
III. V: [Ar] 3s23d3
IV. As: [Ar] 4s23d104p3                                                          B)    Br 
 V. P: 1s22s22p63p5                                                              C)    Sr2+
          A) 1                                                                   D)    Zr4+
          B) 2                                                                   E)    Rb+
          C) 3
          D) 4                                                           37.     Which of the following has the smallest atomic
          E) 5                                                           radius?
                                                                                 A) N
30.      What element has the electron configuration                             B) F
1s22s22p63s23p64s23d104p5?                                                       C) Br
         A) Cl                                                                   D) Cl
         B) Se                                                                   E) S
         C) I
         D) Kr                                                           38.      Which of the following atoms has the highest
         E) Br                                                           ionization energy?
                                                                                  A) Al
31.      What element has the electron configuration                              B) Si
1s22s22p63s23p6?                                                                  C) P
         A) Ar                                                                    D) As
         B) Cl                                                                    E) Sb
         C) Kr
         D) S                                                                    E) Electrons cannot be removed from calcium
         E) none of these                                                        since it is a metal and only wants to gain electrons
                                                                                 to become more stable.
32.      What element has the electron configuration
1s22s22p63s23p64s23d104p65s24d105p66s2?                                  40.      Which of the following exhibits the correct orders
         A) Ba                                                           for both atomic radius and ionization energy, respectively?
         B) Sn                                                                    A) S, O, F, and F, O, S
         C) Pb                                                                    B) F, S, O, and O, S, F
         D) Po                                                                    C) S, F, O, and S, F, O
         E) none of these                                                         D) F, O, S, and S, O, F
                                                                                  E) none of these
33.      Which of the following is ranked in order of largest
to smallest atomic radius?                                               41.      Of the metals in Group I, which has the highest
         A) Rb > Mn > S > Ge > F                                         ionization energy?
         B) F > S > Ge > Mn > Rb                                                  A) Cs
         C) Mn > Rb > F > S > Ge                                                  B) Rb
         D) Rb > Ge > Mn > F > S                                                  C) K
         E) Rb > Mn > Ge > S > F                                                  D) Na
                                                                Page 2
                                                       Unit 3 Study Guide
         E)       Li                                                           C)   F, S, Cl
                                                                               D)   F, Cl, S
42.      Order the elements S, Cl, and F in terms of                           E)   S, F, Cl
increasing ionization energy.
         A) S, Cl, F                                                  44.      Order the following ions from smallest to largest
         B) Cl, F, S                                                  atomic size.
         C) F, S, Cl                                                   As3–, Se2–, Sr2+, Rb+, Br–
         D) F, Cl, S                                                            A) As3– < Se2– < Br– < Rb+ < Sr2+
         E) S, F, Cl                                                            B) Sr2+ < Rb+ < As3– < Se2– < Br–
                                                                                C) As3– < Se2– < Br– < Sr2+ < Rb+
43.      Order the elements S, Cl, and F in terms of                            D) Rb+ < Br– < Sr2+ < As3– < Se2–
increasing atomic radii.                                                        E) Sr2+ < Rb+ < Br– < Se2– < As3–
         A) S, Cl, F
         B) Cl, F, S



 Answer Key                                                           24.      C
  1.          D                                                       25.      A
  2.          A                                                       26.      D
  3.          A                                                       27.      B
  4.          E                                                       28.      B
  5.          D                                                       29.      E
  6.          C                                                       30.      E
  7.          C                                                       31.      A
  8.          D                                                       32.      A
  9.          E                                                       33.      E
  10.         C                                                       34.      E
  11.         D                                                       35.      E
  12.         B                                                       36.      A
  13.         A                                                       37.      B
  14.         C                                                       38.      C
  15.         A                                                       39.      D
  16.         C                                                       40.      D
  17.         B                                                       41.      E
  18.         A                                                       42.      A
  19.         A                                                       43.      D
  20.         D                                                       44.      E
  21.         D                                                       45.      C
  22.         E                                                       46.      C
  23.         D




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