JEE (Advanced) 2010 Paper-2 Question 10

Question 10

Silver (atomic weight = $$108 g mol^{-1}$$) has a density of 10.5 g $$cm^{-3}$$. The number of silver atoms on a surface of area $$10^{-12} m^2$$ can be expressed in scientific notation as $$y \times 10^x$$. The value of x is

Correct Answer: 7

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