TEST NAME: Unit 2 ­ The Atom (AP)
TEST ID: 10067
GRADE: 10­12
SUBJECT: Life and Physical Sciences
TEST CATEGORY: My Classroom
Unit 2 - The Atom (AP)
Page 1 of 6
11/21/12, Unit 2 ­ The Atom (AP)
Student:
Class:
Date:
1.
Which group of elements is the most difficult to ionize in a given period of the periodic table?
A.
Noble gases
B.
Alkali metals
C.
Halogens
D.
Transition metals
E.
Alkaline earth metals
2.
Which group of elements is the most likely to form anions?
A.
Noble Gases
B.
Halogens
C.
Alkali metals
D.
Transition metals
E.
Alkaline earth metals
3.
Which of the following electron configurations belongs to an alkali metal?
A.
(A) 1s22s22p62d103s23p64s23d5
B.
1s22s22p63s23p64s1
C.
1s22s22p63s23p64s23d104p65s24d105p6
D.
1s22s22p63s23p64s23d104p65s24d7
Unit 2 - The Atom (AP)
Page 2 of 6
4.
What would be the electron configuration for the negative ion of a halogen?
A.
1s22s22p62d103s23p64s23d5
B.
1s22s22p63s23p64s1
C.
1s22s22p63s23p64s23d104p65s24d105p6
D.
1s22s22p63s23p64s23d104p65s24d7
5.
Which would be an impossible electron configuration?
A.
1s22s22p62d103s23p64s23d5
B.
1s22s22p63s23p64s1
C.
1s22s22p63s23p64s23d104p65s24d105p6
D.
1s22s22p63s23p64s23d104p65s24d7
6.
Which of the following best helps to account for the fact that the F­ ion is smaller than the
O­2 ion?
A.
F­ has a larger nuclear mass than O­2 has
B.
F­ has a larger nuclear charge than O­2 has
C.
F­ has more electrons than O­2 has
D.
F­ is more electronegative than O­2 is
E.
F­ is more polarizable than O­2 is
Unit 2 - The Atom (AP)
Page 3 of 6
7.
Which of the following shows the correct number of protons, neutrons, and electrons in a
neutral cesium­134 atom?
A.
55 protons, 55 neutrons, 55 electrons
B.
55 protons, 79 neutrons, 55 electrons
C.
55 protons, 79 neutrons, 79 electrons
D.
79 protons, 55 neutrons, 79 electrons
E.
134 protons, 55 neutrons, 79 electrons
8.
Which of the following lists the elements in order of decreasing atomic radius (largest
radius first)?
A.
K, Ca, C, F
B.
F, O, Al, Na
C.
Rb, Cs, Ba Ra
D.
Si, Ge, As, Sb
E.
Li, Be, Na, C
9.
The periodic table can be used to estimate the relative sizes of the elements and ions.
Using that information, predict which pair will have the greatest difference in radius.
A.
K and Na
B.
Cl­ and F
C.
O­2 and F­
D.
Na+ and Br­
E.
Cl and Br
Unit 2 - The Atom (AP)
Page 4 of 6
10.
Which of the following was NOT an important consequence of Neils Bohr’s work on the atom?
A.
Electrons are viewed to be in discrete shells around the nucleus
B.
Electrons are understood to “jump” from one energy level to another by absorbing
and emitting energy
C.
Quantum mechanics was developed to explain the motion of electrons since the
classical physics fails to do so
D.
The nucleus of the atom was discovered via the Gold Foil Experiment
E.
An explanation for the existence of atomic spectra (spectral lines) was devised
11.
Bromine has an atomic mass listed on the periodic table as 79.9 amu, despite the fact
that there is no isotope of bromine with a mass of 80 amu. The most reasonable
explanation for this is
A.
The most abundant isotope of bromine is bromine­79.9
B.
There are nearly equal amounts of bromine­79 and bromine­81
C.
Bromine­81 is significantly more abundant than bromine­79
D.
Bromine­81 has more neutrons than bromine­79
E.
Bromine is a diatomic element
12.
Three elements, X, Y, and Z, have increasing consecu ve atomic numbers. Element X is a
noble gas. Answer the following ques ons about elements X, Y, and Z.
Which element would have the smallest atomic radius? Justify your answer in terms of
atomic structure.
13.
Three elements, X, Y, and Z, have increasing consecutive atomic numbers. Element X is
a noble gas. Answer the following questions about elements X, Y, and Z.
Which element would have the highest ionization energy? Justify your answer in terms of
atomic structure.
Unit 2 - The Atom (AP)
Page 5 of 6
14.
Three elements, X, Y, and Z, have increasing consecutive atomic numbers. Element X is
a noble gas. Answer the following questions about elements X, Y, and Z.
Which element is most metallic? Justify your answer in terms of atomic structure.
15.
Three elements, X, Y, and Z, have increasing consecutive atomic numbers. Element X is
a noble gas. Answer the following questions about elements X, Y, and Z.
What would be the most common charge for an ion of element Y? Element Z?
16.
Three elements, X, Y, and Z, have increasing consecutive atomic numbers. Element X is
a noble gas. Answer the following questions about elements X, Y, and Z.
For the ions of Y and Z, which ion would be smaller? Justify your answer in terms of
atomic structure.
17.
If element X is a noble gas with three energy levels, fill in the superscripts for the electron
configuration for X.
1s__2s__2p__3s__3p__
Unit 2 - The Atom (AP)
Page 6 of 6