Reading Metrics
Grade Level
Upper Grades (UG 9-12)
Book Level
10.0
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
7397
Points per Word
0.000135
Page Count
64
Points per Page
0.015625
Description
This book looks at the discovery of the most fundamental subatomic particle in nature, the proton, which determines why elements have different physical and chemical properties.