According to bohr each orbit an electron could travel in had a certain amount of associated with it.
a. energy
b. charge
c. emission
d. absorption

Galileo was the first to notice that the moon has craters, valleys, and mountains. how might this have changed people's perception of the moon at the time?

What’s #16 asking me and how do i solve it?

The heliocentric and the geocentric models of the solar system included these central principles