1.) Use Table S to determine the atomic radius for K and Ca. Using the numbers you found, describe the periodic trend for the atomic radius of an element. *

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

Which term describes a fracture in the earth at which land stays in the same place? a. joint b. fault c. split d. hinge

What’s the percent by mass of carbon in c10h14n2