What is the trend of the following when you move from top to bottom? atomic radius
atomic size
Ionization energy
Electron affinity
electronegativity
metallic character

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

How many moles of bromine are needed to produce 3.23 moles of potassium bromide

Which activity is an innate behavior