the atomic radius of a cesium atom is 0.000298 micrometers. round this atomic radius to the nearest ten…
the atomic radius of a cesium atom is 0.000298 micrometers. round this atomic radius to the nearest ten thousandth micrometer. enter your answer in scientific notation.
Answer
Explanation:
Step1: Identify the ten - thousandths place
The number is 0.000298. The ten - thousandths place digit is 2 and the digit to its right (hundred - thousandths place) is 9.
Step2: Apply the rounding rule
Since 9 ≥ 5, we round up the digit in the ten - thousandths place. So 0.000298 rounds to 0.0003.
Step3: Convert to scientific notation
0.0003 can be written as (3\times10^{- 4}) in scientific notation.
Answer:
(3\times10^{-4})