Express the diameter of a carbon atom, 0.00000000022 m, in scientific notation.
A. 0.22 x 10^-9 m
B. 2.2 x 10^-10 m
C. 2.2 x 10^-9 m ***
D. 22 x 10^-11 m
I'm not sure. Can someone please check? Thank you!! I need someone to check just really quick thank you so much
3 answers
Disagree. Count the number of zeros to get to your value.
Is it B?
yes, move decimal point right ten to get one non-zero digit left of decimal point.
1 answer