The little spheres represent water molecules. Molecules are in constant motion. The attractions water molecules have for each other keep them close together. They can move past each other, but their ...
Electrons are in regions around the nucleus that are different distances away from the nucleus. The electrons surround the nucleus in 3 dimensions but it is easier to show an energy level model in two ...
Certain historically underserved groups of Public Schools middle school students made gains over the last year on a statewide math proficiency assessment, Superintendent Gabriella Blakey told school ...