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681
In which of the following atoms is the ionic radius larger than the atomic radius? [
11
Na,
12
Mg,
13
AI,
17
CI]
A.
Aluminium
B.
Chlorine
C.
Magnesium
D.
Sodium
View Answer & Discuss (1)
WAEC 2007
682
A transition metal would be expected to
A.
from oxides with different formulae
B.
have strong oxidizing ability
C.
have low density
D.
have an atomic structure with an incomplete outermost shell
View Answer & Discuss
WAEC 2007
683
Which of the following properties of atoms generally increases down a group in the periodic table?
A.
Electron affinity
B.
Electronegativity
C.
Ionic radius
D.
lonization energy
View Answer & Discuss
WAEC 2007
684
Which of the following statements about sodium is not true?
A.
Na
+
is smaller in size than Na
B.
Na is smaller in size than Na
+
C.
Na
+
has fewer electrons than Na
D.
The effective nuclear charge in Na
+
is greater than in Na
View Answer & Discuss (2)
WAEC 2007
685
If the difference between the electronegativities of two elements is large, the type of bond that can be formed between them is
A.
covalent
B.
dative
C.
ionic
D.
metallic
View Answer & Discuss
WAEC 2007
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