Determine the number of significant digits in the value 0.001001 .

Step-by-step solution

According to the rules for determining significant figures, all non-zero digits are significant, and zeros between non-zero digits are also significant. Leading zeros to the left of the first non-zero digit are not significant as they only indicate the position of the decimal point. In the given number 0.001001 , the first three zeros are leading zeros and are not significant. The digits 1001 consist of two non-zero digits and two zeros between them, making all four of these digits significant. Therefore, the numbe