How was aristotle’s model similar to ptolemy’s model? both models stated that the planets rotate on their axes. both models stated that earth is the center of the system around which other objects orbit. both models stated that the planets and objects in the solar system have small orbits called epicycles. both models stated that the sun is the center of the system around which objects have elliptical orbits.

How much energy is made when a pice of wood burns. how do you know

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.