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WorksheetsLearning Module 20
Total questions: 13
Worksheet time: 26mins
Name
Class
Date
1.
Which of these has the largest atomic radius?
a)
oxygen
b)
fluorine
c)
sulfur
d)
chlorine
2.
Which of these elements has the smallest atomic radius?
a)
C
b)
Ne
c)
K
d)
Al
e)
P
3.
Which of the following will have a larger radius than zinc?
a)
gallium
b)
aluminum
c)
magnesium
d)
strontium
4.
The effective nuclear charge of magnesium is
a)
+1
b)
+2
c)
+12
d)
+24
5.
In the following configuration, which electrons are the core electrons? 1s2 2s2 2p6 3s2 3p4
a)
1s2 2s2 2p6
b)
3s2 3p4
c)
1s2 2s2
d)
2s2 2p6 3s2 3p4
6.
Which is larger:
P or P-3
P or P-3
a)
P
b)
P-3
c)
both are same size
7.
Which is larger
a)
Na
b)
Na+
8.
Which is larger
a)
S
b)
S2-
9.
Which is larger
a)
Al
b)
Al3+
10.
Why are cations larger and anions smaller than their respective atoms?
a)
Cations are larger than their respective atoms because of decreased electron repulsion
b)
Cations are larger than their respective atoms because of increased electron repulsion
c)
Anions are smaller than their respective atoms because of increased effective nuclear charge
11.
How do the following two elements bond together?
Cr3+ O2-
Cr3+ O2-
a)
CrO
b)
Cr3O2
c)
Cr2O3
d)
CrO3
12.
How do the following two elements bond together?
K1+ S2-
K1+ S2-
a)
KS
b)
K8S
c)
K6S3
d)
K2S
13.
What is the formula for the compound formed by magnesium ions and nitrogen ions?
a)
MgN
b)
Mg2N3
c)
Mg3N2
d)
MgN3
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