1.
The electron configuration for the carbon atom is
A.
1
s
2
2
s
2
2
p
2
B.
[He] 2
s
4
C.
[Ne] 2
s
2
2
p
2
D.
1
s
2
2
p
4
E.
none of these
2.
The halogens (Group 7) contain how many valence electrons?
A.
1
B.
7
C.
0
D.
8
E.
none of these
3.
The elements chlorine and iodine have similar chemical properties because they
A.
are both metals
B.
are in the same chemical period
C.
have the same number of electrons in their outer energy levels
D.
have the same number of stable isotopes
E.
none of these
4.
The alkali metals have how many valence electrons?
A.
8
B.
7
C.
3
D.
2
E.
1
5.
The noble gases contain how many valence electrons?
A.
1
B.
7
C.
0
D.
8
E.
none of these
6.
All these atoms have seven electrons in their outermost energy levels
except
A.
H
B.
F
C.
Cl
D.
Br
E.
I
7.
Which element has the largest number of electrons in its valence shell?
A.
S
B.
As
C.
K
D.
F
E.
Fr
8.
When moving down a group (family) in the periodic table, the number of valence electrons
A.
remains constant
B.
increases by 2 then 8 then 18 then 32
C.
doubles with each move
D.
decreases regularly
E.
changes in an unpredictable manner
9.
The Group 3 elements through the Group 8 elements form an area of the periodic table where the electron sublevels being filled are
A.
p
orbitals
B.
s
and
p
orbitals
C.
d
orbitals
D.
p
and
d
orbitals
E.
f
orbitals
10.
The yet undiscovered element with atomic number 113 would be a member of
A.
the halogens
B.
the transition elements
C.
the noble gases
D.
the Group 3 elements
E.
none of these
11.
What element has the electron configuration 1
s
2
2
s
2
2
p
6
3
s
2
3
p
6
?
A.
Ar
B.
Cl
C.
Kr
D.
S
E.
none of these
12.
Which of the following atoms has the largest atomic radius?
A.
Na
B.
Mg
C.
Si
D.
P
E.
C
13.
Which of the following atoms has the highest ionization energy?
A.
Na
B.
Mg
C.
Si
D.
P
E.
Cl
14.
Which of the following atoms has the smallest atomic radius?
A.
As
B.
Sb
C.
Bi
D.
P
E.
N
15.
Which of the following has the highest ionization energy?
A.
K
B.
Ca
C.
C
D.
N
E.
O
16.
Which of the following has the smallest atomic radius?
A.
N
B.
F
C.
Br
D.
Cl
E.
S
17.
Metal atoms tend to ______________ electrons and form ______________ ions.
A.
lose; positive
B.
lose; negative
C.
gain; negative
D.
gain; positive
E.
share; neutral
18.
Of the metals in Group 1, which has the highest ionization energy?
A.
Cs
B.
Rb
C.
K
D.
Na
E.
Li
19.
Which of the following properties generally increases as we go from the lower left to the upper right of the periodic table?
A.
ionization energy
B.
atomic size
C.
atomic number
D.
number of electron shells
E.
none of these
20.
The energy levels of the hydrogen atom (and all atoms) are ______________, meaning that only certain discrete energy levels are allowed.
A.
varied
B.
quantized
C.
ramp-like
D.
continuous
E.
two of these
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