ATOMIC BASICS How to Draw Bohr Diagrams Bohr

ATOMIC BASICS How to Draw Bohr Diagrams

Bohr Diagrams 1) Find your element on the periodic table. 2) Determine the number of electrons – it is the same as the atomic number. 3) This is how many electrons you will draw.

Bohr Diagrams C 1) Draw a nucleus with the element symbol inside— the symbol represents the protons and neutrons for that atom. 2) Carbon is in the 2 nd row of the periodic table, so it has two energy levels. 3) Draw the energy levels around the nucleus.

Bohr Diagrams C 1) Add the electrons. 2) Carbon has 6 electrons. 3) The first energy level can only hold 2 electrons.

Bohr Diagrams C 1) Since you have 2 electrons already drawn, you need to add 4 more. 2) These go in the 2 nd energy level.

Bohr Diagrams C 1) Check your work. 2) You should have 6 total electrons for Carbon. 3) Only two electrons can fit in the 1 st energy level. 4) The 2 nd energy level can hold up to 8 electrons. 5) The 3 rd energy level can hold a total of 18 electons, but the elements in the first few rows only use 8 electrons.

Bohr Diagrams Try the following elements on your own: C a) b) c) d) e) H He O Al Ne

Bohr Diagrams Try the following elements on your own: H a) b) c) d) e) f) H – 1 electron He O Al Ne K

Bohr Diagrams Try the following elements on your own: He a) b) c) d) e) f) H He - 2 electrons O Al Ne K

Bohr Diagrams Try the following elements on your own: O a) b) c) d) e) f) H He O - 8 electrons Al Ne K

Bohr Diagrams Try the following elements on your own: Al a) b) c) d) e) f) H He O Al - 13 electrons Ne K

Bohr Diagrams Try the following elements on your own: Ne a) b) c) d) e) f) H He O Al Ne - 10 electrons K

Bohr Diagrams You should know how to draw a Bohr Diagram for the first 20 elements.