Which requires more energy to move an electron?
from n = 3 to n = 4
from n = 2 to n = 3
from n = 1 to n = 2

Which electron configuration represents the electrons in an atom of sodium in the ground state at stp

What causes most sediment to wash or fall into a river

Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. what is the independent variable for this experiment?