Chapter 7 Sunlight Shows The Way Flashcards
Isaac Newton proved that white light from the sun is A) pure light without colors B) contains all the colors of the rainbow
B) contains all the colors of the rainbow
The three most important tools for making advances in chemistry were electricity, the periodic table and A) the law of buoyancy B) microscope C) spectroscope D)telescope
C) spectroscope
Joseph Von Fraunhofer A) died in the collapse of an apartment building B) worked as a child in a factory that glazed pottery C) studied chemistry in a well equipped home laboratory D) was the son of a nobleman
B) worked as a child in a factory that glazed pottery
True or False. Fraunhofer saw the lines in the spectrum while testing the quality of a prism
True
True or false. Joseph Fraunhofer invented the spectroscope in 1826 following a lecture he gave to a group of scientists
False
True or false. Robert Bunsen invented the Bunsen burner
True
The first element discovered by the spectroscope was A) cesium B) helium C) kryptonite D) uranium
A cesium
True or false. Helium was discovered on the sun before it was discovered on earth
True
Henry Cavendish combined oxygen with nitrogen by using A) an electric spark B) high heat C) intense cold D) great pressure
A an electric spark
True or False. When Rayleigh weighed equal volumes of nitrogen freed from compounds with nitrogen separated from the atmosphere, they weighed the same
False
True or false. In 1892, Rayleigh announced that his experiment revealed a new element in the atmosphere
False
Argon makes up about A) 1 B) 5 C) 78 D) 21 percent of the atmosphere of the earth
A) 1
True or flaw. Argon helps make light bulbs last longer
True
The name helium means A) Helena, Montana B) the hills C) the sun D) uranium
C) the sun
The noble gas family is also known as the A) empire if the sun family B) inert gases C) Ramsay and Rayleigh family d) strange family
B) inert gases
