Select all the things that are associated with Thomson's experiment used the CRT in the experiment

did the gold foil experiment

discovered the nucleus

discovered the electrons

Noble gases are the most reactive elements on the periodic table. a. true b. false

In which environment would primary succession occur? a forest with a few remaining trees after a recent wildfire an area of exposed rock after a glacier melts away beach that is exposed to the air at low tide an abandoned baseball field in a small town

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)