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

Question

Responses

a) 0.00000005
0.00000005

b) 0.00000006
0.00000006

c) 0.0000000053
0.0000000053

d) 0.0000005

Answer 1

To approximate the radius of a hydrogen atom, which is given as 0.0000000529177 millimeters, we can round it to 2 significant figures. The first two significant figures here are "05," and the third figure is "2," which suggests rounding up.

Thus, rounding 0.0000000529177 would give us approximately 0.00000005.

Therefore, the correct response is:

a) 0.00000005