Silver (atomic weight `=108gmol^(-1)` ) has a density of `10.5gcm^(-3)` .The number of silver atoms on a surface of area `10^(-12)m^(2)` can be expressed in scientific notation as `y times10^("x")` .The value of `"x"` is

Silver (atomic weight 108 g mol^(-1)) has a density of 10.5 g cm^(-3) . The number of silver atoms on a surfaces of area 10^(-12) m^(2) can be expressed in scientific notation as Y xx 10^(-x) , The value of x is …….

The answer to each of the following questions is a single digit integer, ranging from 0 to 9. If correct answers to the question number A,B,C and D (say) are 4,0,9 and 2 respectively, then correct darkening of bubbles should be as shown on the side. (A) Silver (atomic weight = 108 g mol^(-1) ) has a density of 10.5 g cm^(-3) . The number of silver atoms on a surface are of 10^(-12) m^(2) can be expressed in scientific notation as yxx10^(x) . The value x is ...........

Express (2.2xx10^(4))xx(3.3xx10^(5)) in scientific notation.

If the expression x^(2)-(5m-2)x+(4m^(2)+10m+25)=0 can be expressed as aperfect square then value of m is

The number of silver atoms present in a 90% pure silver wire weighing 10 g is (Ag = 108)

Average life time of a hydrogen atom excited to n=2 state is 10^(-8) s. Find the number of revolutions made by the electron on an average before it jumps to the ground state. If your answer in scientific notation is x xx 10^(y), then find the value of y.