Question

Which of the following numbers has the greatest number of significant figures?a.)144.5 b.)10.507c.)6.948 ✕ 105

Answer 1

In order to figure out how many significant figures each has, let's go through each option

A) 144.5

Each of these values is a significant figure

1 4 4 5 -> There are 4 significant figures

B) 10.507

All of these are significant figures as well

1 0 5 0 7 -> 5 significant figures

C) 6.948 x 10^5

We don't consider the scientific notation part, but the rest of the digits are significant figures

6 9 4 8 -> 4 significant figures

Option B has the most