The mass of an electron, me, 9.11 × 10⁻³¹ kilograms shows there are 3 important numbers in them, namely numbers 9, 1, and 1
<h3><em>Further explanation</em></h3>Significant numbers are obtained from measurement results of exact numbers and the last number estimated
This is called significant numbers
the scientific notation can be described as:
a, ... x 10ⁿ
a, ... called a significant number
10ⁿ is called a big order
Rules for significant numbers in general:
- 1. All non-zero numbers are significant numbers
- 2. a zero which is located between two non-zero numbers including a significant number
- 3. all zeros are located in the final row written behind the decimal point of the include significant number
- 4. zero decimal point is the not significant number
From the numbers known in the question amounting to 9.11 × 10⁻³¹ kilograms shows there are 3 important numbers in them,(symbol a, before a big order ,called a significant number) namely numbers 9, 1, and 1
<h3><em>Learn more</em></h3>significant figures
significant figures in the following number: 5.67 x 106
the number of significant figures is 0.025
0.080 significant figures
the fewest number of significant figures
Keywords : significant number, the scientific notation, decimal point, a big order
