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1) Of the following, which gives the correct order for atomic radius for Mg, Na, P, Si and
A)Si > P > Ar > Na > Mg
B)Ar > P > Si > Mg > Na
C)Ar > Si > P > Na> Mg
D)Na > Mg > Si > P > Ar
E)Mg > Na > P > Si > Ar
Ar?
I
2)ofthefollowingelements,-hasthemostnegativeelectronaffinity.
A)Al
B)Cl
C)Si
D)P
E)B
D) base
E)
3) M/hich of the following is not a characteristic of metals?
A) ductility
B) low ionization energies
C) malleability
D) acidic oxides
E) These are all characteristics of metals.
_.
4) The reaction of a metal with a nonmetal produces a(n)
A) oxide
B) acid
C) salt
hydroxide
5) The atomic radius of main-group elements generally increases down a group because
A) effective nuclear charge decreases down a group
B) effective nuclear charge increases down a group
C) effective nuclear charge zigzags down a group
D) the principal quantum number of the valence orbitals increases
E) both effective nuclear charge increases down a group and the principal quantum number of the valence
orbitals increases
Consider the following electron configurations to answer the questions that follow:
(i)
r& zJ
(ii)
1s2
2p6
sl
2& Zp6 3tZ(iii) 1s2 2&Zp5 3s2 3p1
(iv) lJ 2& zp6 3& q4
(v) 1* 2&zp6 3J eps
6)Theelectronconfigurationbelongingtotheatomwiththehighestsecondionizationenergyis-.
E) (v)
D) (iv)
c) (iii)
B) (ii)
A) (i)
7) The electron configuration of the atom that is expected to have a positive electron affinity is
D) (iv)
c) (iii)
B) (ii)
A) (i)
=-.
E) (v)
8) The electron configuration that belongs to the atom with the lowest second ionization energy is
A) (i)
B) (ii)
c) (iii)
9) All of the followine are ionic comoounds exceDt
C) SiO2
B) NaCl
A) Na2SO4
10) Which nonmetal exists as a diatomic solid?
A)
iodine
B)
bromine
C)
boron
A-1
D) (iv)
E)
(")
D) Li3N
E)
K2o
D)
antimony
E) phosphorus
11) Of the
following
A)Br
elements,
B)Cl
12) Oxides of most nonmetals combine
A) hydrogen gas
B) a base
has the most negative electron affinity.
C)s
D)r
hLDEE) S€
with water to form
C) water
D) an acid
E) water and a salt
13)
which equation correctly represents the first ionization of phosphorus?
A)P(g) + e- + P-(g)
B)P*(d + e- * P(g)
C)P(g) * P+(g) + eD)P-(g) * P(g) + eE)P(g) + P-(g) * e-
14) Of the
metals,
B)At
following
A)Na
15) The
substance,
A)
exhibits multiple oxidation states.
qV
D)Cs
is always produced when an active metal reacts with water.
B)
C)
D)
H2o
cq
Hz
e
E)Ca
E)
NaoH
15) Chlorine is much more apt to exist as an anion than is sodium. This is because
A) drlorine has a greater electron affinity than sodium does
B) chlorine is a gas and sodium is a solid
C) chlorine has a greater ionization energy than sodium does
D) chlorine is more metallic than sodium
E) drlorine isbigger than sodium
ln
the lowest first ionization energies of the groups listed.
A) Noble gases
B) Transition elements
C) Halogens
D) Alkaline earth metals
E) Alkali metals
-have
18) Element X reacts
with chlorine to form
ElementXis__---.
A)P
B) Rb
a compound
with the formula XCl2. The oxide of element X is basic.
c) Ar
D)H
19) Elements in the modem version of the periodic table are arranged in order
of increasing
A) atomicnumber
B) number of isotopes
C) oxidation number
D) average atomic mass
E) atomic mass
A-2
E) Ca
frts
20) Which of the following is an isoelectronic series?
A) $ Cl, Ar, K
B)
d-,
P-,ft\e, Na+
c) si2-, P2-,9-,c12-
Cl-,Br-,|-
D) F-,
E) B5-, Si4-, As3-,
T4-
21) Which of the following generalizations cannot be made with regard to reactions of alkali metals? (The symbol
M represents Erny one of the alkali metals.)
A) 2M (s) +
S
(s)
*
MzS (s)
2M(s) + 2H2O(l) * 2MOH(aq)
C) M (s) + oz (g) * MQ (s)
D) 2M (s) + Cl2 (g) * 2MCl (s)
E) 2M (s) + H2 (g) * zMH (s)
B)
* HzE)
22) \alhich element would be expected to have chemical and physical properties closest to those of fluorine?
A)Fe
B)o
C)Cl
with the smallest diameter is
B) BrA) F-
D)S
E)Ne
23) The ion
c)
cl-
D)
I-
2qUthefollowinge1ements,-hasthemostnegativeelectronaffinity.
-.
B)o
A)S
C)Na
D)K
E)
d-
E)B
25) Element M reacts with chlorine to form a compound with the formula MCl2. Element M is more reactive than
magnesiumandhasasmallerradiusthanbarium.Thiselementis-'
A)Sr
C)Ra
B)Be
D)K
E)Na
26)Thefirstionizationenergiesoftheelements-asyougofromlefttorightacroSsaperiodofthe
periodic table, and
A) increase, increase
as
you go from the bottom to the top of a group in the table.
B) increase, decrease
C) decrease, increase
D) decrease, decrease
E) are completely unpredictable
27) \A/hich of the following has the largest second ionization energy?
A)
B) Ca
Se
28) \Mhat is the coefficient of H2O when the
Ba (s)
+ H2O (l)
C) Ge
D) Ga
following equation is completed and balanced?
-
A)1
B)2
c)3
D)5
E) Ba(s) does not react with H2O (l).
A-3
E)K
gluE
29) which of the following correctly lists the five atoms in order of increasing size (smallest
to largest)?
A)F < S < O < Mg < Ba
B)O < F < S < Mg < Ba
C)F < O < S < Ba < Mg
D)O < F < S < Ba < Mg
E)F < O < S < Mg < Ba
30) ll/hich ion below has the largest radius?
A) Br-
c) cl-
B) 6+
D) Na+
E)
F-
31) Atomic radius generally increases as we move
A) down a group and from right to left across a period
B) up a group and from left to right across a period
C) up a group and from right to left across a period
D) down a group; the period position has no effect
E) down a group and from left to right across a period
32) Nonmetals can be
_
at room temperature.
A) solid only
B) solid liq"i4 or gas
C) liquid only
D) liquid or gas
E) solid or liquid
33)
of
the following atoms, which has the largest first ionization energy?
A)o
34) Of the
B)Br
following specieq
---
A) R6+
35)
B)
C)C
Ar
C) S12+
D) Br-
E)
Kr
E)
Ne-,Ar+
is isoelectronic with neon.
B) Cl-, Cl+
c) cl-, F-
36) Oxides of the active metals combine with acid to form
A) hydrogen gas
B) metalhydroxides
E)I
has the largest radius.
is isoelectronic with argon and
-=.A) Ne-, K1+
D)p
-
C) oxygen gas
D) metal hydrides
E) water and a salt
37)Ct2(g) + H2O(l) *
A) 2HCl(aq)* Q- (g)
Cl- (aq) + Hzo 0)
C) Cl2 (aq) + H2o (l)
D) HCI (aq) * HoCl (aq)
E)2Hcl(aq) QG)
B) 2
"
A-4
D) F+, F-
38) Na reacts with element X to form an ionic compound with the formula Na3X. Ca
A) CaX2
B) CaX
C)
Ca3X2
Ptus
will react with X to form
D) Ca3X
E) Ca2X3
39) In which of the following atoms is the 3s orbital closest to the nucleus?
A) At
B)I
C) Br
D) Cl
E) The 3s orbitals are the same distance from the nucleus in all of these atoms.
40) In which of the following atoms is the 2s orbital closest to the nucleus?
A)S
B) Si
c) cl
D)P
E) The 2s orbitals are the same distance from the nucleus in all of these atoms.
41) Of the choices below, which gives the order for first ionization energies?
A)Cl > S > Al > Ar > Si
B)Ar > Cl > S > Si > Al
C)S>Si>Cl>Al>Ar
D)Al > Si > S > Cl > Ar
E)Cl > S > Al > Si > Ar
42) AU the elements in group 8A are gases at room temperature. Of all the groups in the periodic table, only group
contains examples of elements that are gas, liquid, and solid at room temperaturc.
B) 24.
D) 1A
A)7A
c) 6A
E) 5A
43) il/hich of the following correctly represents the sqcond ionization of aluminum?
A) At- (g) * e- * Al2- (g)
B) at+ (g) * e- * A1(g)
C) al+ (g) + 412+ (g) * eD) Al+ (g) * e- * al2+ 1*1
E) Al (g) * Al+ (g) * et14)
Which one of the following atoms has the largest radius?
B) Ne
A) Cl
C)F
45)2F2(g)
*
2H2o(1)
D)O
E)S
*
A)2w2(aq) * 2OH*
(aq)
B) 2 HF (aq) + 2 HFo (aq)
* 2 02- (aq)
D) 2 F- (aq) * 2 H+ (aq) + H2O2
E) 4 Hr (aq) * oz (g)
C) 4 HF (aq)
(aq)
46) In which set of elements would all members be expected to have very similar chemical properties?
C) N, O,
D) o, S,
E) S, Se Si
A) Na, Mg,
B) Ne, Na
K
MB
F
A-5
Se
fuu€
47) Consider the following properties of an element:
(i)
(it
It is solid at room temperature.
It easily forms an oxide when exposed to air.
(iii) When it reacts with water, hydrogen gas evolves.
(iv) It must be stored submerged in oil.
lvhich element fits the above description the best?
A)
48)
sodium
B)
sulfur
C)
copper
D)
mercury
E) magnesium
tr
general, as you go across a period in the periodic table from left to right:
(1) the atomic radius
;
(2) the electron affinity becomes
negative; and
(3) the first ionization energy
A) increaseg increasingly, increases
B) decreaseg increasingly, increases
C) decreases, increasingly, decreases
D) increases, increasingly, decreases
E) decreases, decreasingly, increases
49) Which one of the following has the smallest radius?
A) Na
B) Fe
c) cr
50)-iscreditedwithdeve1opingtheconceptofatomicnumbers.
A) Henry Moseley
B) Emest Rutherford
C) Michael Faraday
D) Lothar Meyer
E) Dmitri Mendeleev
A-6
D) Br
E)P