Choose the true statement concerning the mall or subatomic particles: a. elections are more massive than protons. b. electrons are more massive than neutrons. c. protons and neutrons have about the same mass. d. all subatomic particles have about the same mass.

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic