How neutrons are in one atom of Fluorine? Use the element key shown. 9
F
Fluorine
18.998
a
9
b
10
С
19
d
20

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

An object becomes electrically charged when: electrons are created in it electrons from it are destroyed electrons are transferred to it protons from it are destroyed protons are created in it

Light waves travel than sound waves.