Which principal energy level of an atom contains an electron with the lowest energy?
a) n=1
b) n=2
c) n=3
d) n=4

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

You have a liquid that exhibits diltancy. you want to pour it from a bottle. what should you do to the bottle before pouring

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block