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

1 Answer
Jun 13, 2016

Answer:

#1.54xx10^{-10}#.

Explanation:

Move the decimal point until you have one nonzero digit to the left of it. The number with the decimal point moved is #a#, the number of places you moved the decimal point is #n#, and then you have

#axx10^{n}# if you moved the decimal point to the left

#axx10^{-n}# if you moved the decimal point to the right

#axx10^{0}#, because #n=0#, if you did not have to move the decimal point