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Honors Chemistry Practice Test Final 1
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Honors Chemistry Practice Test Final 1
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Honors Chemistry Practice Test Final 1The lanthanide series elements are similar because:
A) they are in the same period
B) they have filled subshells
C) they have high atomic weights
D) electrons are added in the core of the atoms rather than the outer shell
E) none of these - ANSWER Electrons are added in the core of the atoms rather
than the outer shell
4) Which of the following pairs of elements are classified as metalloids?
A) aluminum and silicon
B) argon and neon
C) arsenic and gallium
D) bromine and sulfur
E) copper and silver - ANSWER Arsenic and Gallium
7) Which of the following has the largest radius?
A) Cl-
B) Ar
C) Sc^3+
D) K+
E) P^3- - ANSWER P^3-
16) Why is the electron affinity so positive for the noble gas elements?
A) The added electron would have to go into a new shell.
B) The added electron would have to be added into the half-filled p subshell.
C) The added electron would have to be added into the p subshell.
D) The noble gas elements are diatomic elements.
E) Electrons can't be added to gases. - ANSWER The added electron would have
to go into a new shell
21) The boiling point for gallium is 2403 °C. The boiling point for thallium is 1457 °C.
Which of the following would be the predicted boiling point forindium?
A) 3860 °C
B) 1287 °C
C) 946 °C
D) 1930 °C
E) It cannot be predicted. - ANSWER 1930 degrees Celsius
23) Arrange the following in order of increasing ionization energy: Li, Cs, K
A) K < Li < Cs
B) Cs < K < Li
C) Li < Cs < K
D) Cs < Li < K
E) K < Cs < Li - ANSWER Cs < K < Li
7) Which of the following has the largest radius?
, A) Se2-
B) Kr
C) Rb+
D) Br-
E) Y3+ - ANSWER Se^2-
9) Which of the following occurs for the representative elements going left to right
across the period?
A) electronegativity decreases
B) atomic size increases
C) forces of attraction between electron and nucleus increase because nuclear
charge increase
D) the outer electrons are held more weakly
E) none of these - ANSWER Forces of attraction between electron and nucleus
increase because nuclear charge increase
11) Choose the INCORRECT statement.
A) Within a given sublevel, each orbital is usually occupied by a single electron
before any orbital has two electrons.
B) When a metallic element unites with a nonmetallic element, electrons are lost by
atoms of the metal and gained by atoms of the nonmetals.
C) The rare gas atoms complete the filling of the p orbitals.
D) The ionization energy of Ca+ is greater than that for Ca++.
E) Ba2+ is smaller than Ba+. - ANSWER The ionization energy of Ca+ is greater
than that for Ca++ (UNTRUE)
What is the relationship between ionization energy and atomic radii?
A) Energy increases as radii increases.
B) Energy is negative for large radii.
C) Energy decreases as radii decreases.
D) Energy decreases as radii increases.
E) There is no relationship. - ANSWER Energy Decreases as Radii increases
24) Which of the following has the most negative electron affinity: Li, Be, N, O, F?
A) Li
B) Be
C) N
D) O
E) F - ANSWER F
1. Which of the following combinations of quantum numbers is NOT allowed?
n l m(l) m(s)
a) 1 1 0 1/2
b) 3 0 0 -1/2
c) 2 1 -1 1/2
d) 4 3 -2 -1/2 - ANSWER A because L must be at least one less than N
2. The electron configuration of indium is
a) [Kr] 5s2-5p1-5d10
b) [Ar] 4s2-4d10-4p1
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