The size of a hydrogen atom is about 1.2×10^−10 m across. The size of an oxygen atom is 0.000000000152 m across. What is the difference between the sizes of these atoms in scientific notation?

Question

Responses

3.2×10^−11 m
2.72 x 10^-10 m
3.2 x 10^-9 m
3.2 x 10^-10 m

Answer 1

The difference between the sizes of these atoms can be calculated by subtracting the size of the hydrogen atom from the size of the oxygen atom:

0.000000000152 m - 1.2x10^-10 m = 3.2x10^-11 m.

Therefore, the correct answer is 3.2x10^-11 m.