Question

estimate large and small quantities quick check
the radius of a hydrogen atom is 0.0000000529177 of a millimeter. express this number as an approximation. (1 point)
0.0000000053
0.00000006
0.0000005
0.00000005

Explanation:

Step1: Identify significant - digits

We want to approximate 0.0000000529177. We look at the non - zero digits and decide on an appropriate level of precision.

Step2: Round the number

We can round 0.0000000529177 to two significant digits. The first non - zero digit is 5 and the next digit is 2. Since 2 < 5, we keep 5 and drop the remaining digits. So 0.0000000529177 ≈ 0.000000053.

Answer:

0.000000053