What is the name of the galaxy where earth is located?
a) andromeda
b) sun galaxy
c) comet galaxy
d) milky way galaxy

The peak wavelength for the blackbody curve of a star is in the uv range. assuming the radiation from this star can reach earth, would you be able to see it?

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?

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?