Answer
2 $\times$ $10^{-7}$
Work Step by Step
We need to write 0.0000002 as the product of a number greater than or equal to 1 and less than 10, and an integral power of 10.
The number greater than or equal to 1 and less than 10 will be 2.
The decimal point has moved 7 places to the left, so the exponent of 10 will be -7.
So, 0.0000002 = 2 $\times$ $10^{-7}$