Atomic And Ionic Radius Page 2
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1
2C h e m g u i d e – q u e s t i o n s
b) The ions at the right of the chart are also isoelectronic. What are the electronic structures of
these three ions?
c) Explain why, in each of these two sets of ions, the radius falls as you go across the period.
d) Why are the radii of the second set of ions bigger than the group of ions on the left of the chart?
6. Here is a list of assorted ions written (unhelpfully!) in alphabetical order:
Al
3+
F
-
Mg
2+
N
3-
O
2-
Na
+
Sort these into a list of increasing ionic radius, explaining your reasoning.
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