The size of a hydrogen atom is about 1.2 times 10^-10m across. The size of an oxygen atom is 0.00000000152m across. What is the difference between the sizes of these atoms in scientific in scientific notation?
3.2 times 10^-11m
3.2 times 10^-9m
3.2 times 10^-10m
2.72 times 10^-10m
The difference between the sizes of these atoms can be calculated by subtracting the size of the oxygen atom from the size of the hydrogen atom:
1.2 x 10^-10m - 1.52 x 10^-9m = -3.2 x 10^-10m
So, the correct answer is 3.2 times 10^-10m.