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)

Answer 1

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

0.000000000152 m - 1.2 * 10^-10 m

To subtract these values, we need to express them in the same power of 10. Let's convert 0.000000000152 m to scientific notation:

0.000000000152 m = 1.52 * 10^-10 m

Now we can subtract the values:

1.52 * 10^-10 m - 1.2 * 10^-10 m = (1.52 - 1.20) * 10^-10 m = 0.32 * 10^-10 m

Finally, we can convert the result to scientific notation:

0.32 * 10^-10 m = 3.2 * 10^-11 m

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