With the exception of helium, the noble gases condense to form solids when they are cooled sufficiently.

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With the exception of helium, the noble gases condense to form solids when they are cooled sufficiently. At temperatures below 83 K, argon forms a close-packed solid whose structure is shown below.

(a) What is the apparent radius of an argon atom in solid argon, assuming the atoms touch as shown in this figure? 

(b) Is this value larger or smaller than the bonding atomic radius estimated for argon in Figure 7.7? 

(c) Based on this comparison would you say that the atoms are held together by chemical bonds in solid argon?

Figure 7.7

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Chemistry The Central Science

ISBN: 978-0134414232

14th Edition

Authors: Theodore Brown, H. LeMay, Bruce Bursten, Catherine Murphy, Patrick Woodward, Matthew Stoltzfus

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