The radius of a hydrogen atom is 0.0000000529177 of a millimeter. Express this number as an approximation.(1 point)

Question

Responses

0.00000006
0.00000006

0.00000005
0.00000005

0.0000005
0.0000005

0.0000000053

Answer 1

To express the radius of a hydrogen atom, which is \(0.0000000529177\) millimeters, we can round this number to a more approximate value.

1. Looking at the number \(0.0000000529177\), we can round it based on the significant figures after the seventh decimal placement.
2. The first significant digit is \(5\), followed by \(2\), which is less than \(5\), thus we keep \(5\) as it is and round down.

Thus, we can round \(0.0000000529177\) to \(0.00000005\).

So the correct approximation is:

0.00000005