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Grade: 12
        
the edge length of FCC is 508 pm if the radius if the cation is 110 pm the radius of anion is           ans is 114 pm
5 years ago

Answers : (2)

siddharth gupta
28 Points
							
the same question was asked in aieee 2010.The language of question is not very clear as FCC can be rock salt,zinc blende,fluorite or anti-fluorite , but we simply consider it to be rock salt 
and hence rc+ra=a/2i.e110+ra=254i.e ra=144 pm.
thank you
siddharth gupta
5 years ago
Sai lokheshh
13 Points
							Rc+Ra=1/2,which implies that answer will 249 pico metre it can also be find by drawing the cube and filled by a pythagorous theorem which implies answer as 249 pico metre
						
one year ago
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