Energy Level and Bohr Models

We learned that atoms are electrically neutral. To model the atom we can use either energy level models or Bohr models. Electrons occupy shells which are divided in orbitals: 2 electron ins the first orbital, 8 in the second, 8 in the third, etc..

Here is a Bohr Model (left) and an Energy Level Model (right) of Calcium:


Bohr Models gives a picture all of the atom's valence shells and its electrons along with the number of protons and neutrons present in the nucleus. Energy Model diagrams show all of the atom's valence shells and its electrons along with the atomic mass (40) and number of protons (20).


--- Jael Lumba