Which atomic model propose that electrons move in specific orbits around the nucleus of an atom

What can be added to the examples section of each circle? endothermic: ice melting into water, and a heat pack becoming warm exothermic: a glow stick glowing, and fireworks exploding endothermic: ice melting into water, and an instant ice pack turning cold exothermic: fireworks exploding, and gasoline burning endothermic: a glow stick glowing, and a heat pack becoming warm exothermic: an instant ice pack turning cold, and ice melting into water endothermic: gasoline burning, and an instant ice pack turning cold exothermic: ice melting into water, and an instant ice pack turning cold

If the particles in a sample of matter have an orderly arrangement and move only in place, the sample is a

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?