Which is true about the motion of electrons? Electrons are moving around the nucleus through pathways called orbits.
in random and zigzag motion
in circular motion towards the nucleus.
in parallel motion in reference with the nucleus.

Nonmetals usually react by gaining electrons

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Sun is explosive itself spread 9 planets.earth is 3rd explosive in the solar system about 500 hundred million years ago . first earth became ice age and freezing climate.centre of earth magma. north zone is artic . south is anatric