Which of the following provides evidence for the quantization of light?
1. the individual dots seen on a photographic plate for extremely short exposure times of an image.
2. interference effects seen when light passes through a narrow opening.
3. experiments that spread light out into a spectrum of colors.
4. all of the above

Examine the false statement. compounds are the smallest unit of an element that occur most commonly in nature. select the rewording of the statement that is true. a: atoms are the smallest unit of an element that commonly occur in nature. b: molecules are the smallest unit of an element or compound that commonly occur in nature. c: molecules are the smallest unit of a compound that occur on the periodic table. d: compounds are the smallest unit of an element that occur on the periodic table