The periodic table below shows major regions in different colors. Which answer choice describes the noble gases?
A. All of the elements of Period 1 in orange boxes
B. The two separate rows of elements in dark and light blue boxes at the bottom
C. All of the elements in green boxes
D. All of the elements of Group 18 in orange boxes
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Ответ:
Ответ:
D. all of the elements of Group 18 in orange boxes
Ответ:
Explanation:
Visible light.
Infrared light.
Near ultraviolet light.
Microwaves.
Low frequency waves.
Radio waves.
Waves produced by mobile phones.
A campfire's heat.