What is 0.0000000065 in scientific notation?

The number 0.0000000065 in scientific notation is expressed as (6.5 \times 10^{-9}). This format represents the number as a coefficient (6.5) multiplied by a power of ten, indicating its scale. The exponent (-9) shows that the decimal point has been moved 9 places to the right to convert it back to standard form.