178 Prof. W. L. Bragg on the 



These data have been used in calculating the diameters 

 of fig. 3. 



' r Atomic Diameter x 10 cm. 



3 oh 

 o- 



i — i — i — i — i — i — i — i — i — i — r 



Neon 



4 



Argon 



TZ^ 



=1-0 



Krypton 



-cr" 



.o 



ff-cr 



I I I I L 



J L 



Atomic Radius ' •*" 10 cm. 



3 

 GO 



