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) Responses ◂...▸3.2 ×◂◽˙▸10−10 m 3.2 times 10 superscript negative 10 baseline m 3.2×10−9 m 3.2 times 10 superscript negative 9 baseline m ◂...▸3.2×◂◽˙▸10−11 m 3.2 times 10 superscript negative 11 baseline m 2.72×◂◽˙▸10−10 m 2.72 times 10 superscript negative 10 baseline m

Question

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) Responses ◂...▸3.2 ×◂◽˙▸10−10 m 3.2 times 10 superscript negative 10 baseline m 3.2×10−9 m 3.2 times 10 superscript negative 9 baseline m ◂...▸3.2×◂◽˙▸10−11 m 3.2 times 10 superscript negative 11 baseline m 2.72×◂◽˙▸10−10 m 2.72 times 10 superscript negative 10 baseline m

Answer 1

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

Size of hydrogen atom: 1.2 x 10^-10 m
Size of oxygen atom: 1.52 x 10^-10 m

Difference = 1.2 x 10^-10 m - 1.52 x 10^-10 m
Difference = -0.32 x 10^-10 m

To express this in scientific notation, we can rewrite the number -0.32 x 10^-10 as 3.2 x 10^-11.

Therefore, the difference between the sizes of these atoms is 3.2 x 10^-11 m.