Atoms are the building blocks of matter on Earth. Atoms make up all living and non living matter on Earth. Which of these substances is NOT made out of atoms? options:
Humans

Air

Water

Electrons

Which of the following compounds does not contain molecules? question 2 options: co2 h2 nacl h2o

Electrons are extremely important to what area of technology? a) anti-aging research b) household product development c) electronics d) drug discovery

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?