Question

The diameter of a carbon atom is 0.000000000154 m. what is the this number expressed in scientific notation

Answer 1

1.54^-10 m, you bring the decimal point back to the position after the first whole number and count the places it took to get it there. If you're moving it backwards, the exponent will be negative, and if you're moving it forwards the exponent will be positive

Answer 2

The answer to your question is

1.54*10^-10m

I hope this helps