What periodic table element has Atomic Number Z of 79 and neutron of 118?

After cloud droplets form, what must happen to them for precipitation to occur?

List four observations that indicate that a chemical reaction may be taking place

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.