Question How many times heavier is a He atom compared to a H atom? a. A helium atom is ~2 times heavier than a hydrogen atom. b. A helium atom is ~5 times heavier than a hydrogen atom. c. A helium atom is ~8 times heavier than a hydrogen atom. d. A helium atom is ~4 times heavier than a hydrogen atom. Looking for a […]
Question Describe two ways an atom can become excited. a. By emission of a photon and by collision with other atoms. b. By absorption of a photon and by atom decay. c. By emission of a photon and by atom decay. d. By absorption of a photon and by collision with other atoms. Looking […]
Question Describe the process of spectrum production by a neon sign. a. Neon atoms become excited by electricity, then an electron inside the atom goes to a higher energy level, emitting energy as a photon. b. Neon atoms become excited by rapid heating, then an electron inside the atom drops to a lower energy level, […]
Question How is the macroscopic world you see around you determined by a microscopic world you cannot see? a. The microscopic world does not exist, because it cannot be seen. b. Actions and interactions of atoms in the microscopic world determine the behavior of macroscopic objects. c. Macroscopic and microscopic worlds exist independently. d. The […]
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