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?(1 point)

Question

Responses

3.2×10−9 m
3.2 times 10 superscript negative 9 baseline m

2.72×10−10 m
2.72 times 10 superscript negative 10 baseline m

3.2 ×10−10 m
3.2 times 10 superscript negative 10 baseline m

3.2×10−11 m

Answer 1

To find the difference between the sizes of these atoms, we need to subtract the size of the hydrogen atom from the size of the oxygen atom.

0.000000000152 m - 1.2×10^-10 m = 0.0000000000328 m

In scientific notation, this is written as 3.28×10^-11 m.

Therefore, the correct answer is 3.2×10^-11 m.