Silver (atomic weight=108gmol^-1) has a ...

Silver `(atomic weight=108gmol^-1)` has a density of `10.5 gcm^-3`. The number of silver atoms on a surface of area `10^-12 m^2` can be expressed in scientific notation as `yxx10^x`. The value of x is

1) 3

2) 5

3) 7

4) 9

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MODERN PUBLICATION-SOLID STATE-EXERCISE

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