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chloe ko.
christina chow.
mr. doktor's chemistry class
block g

home. mrdoktor.

Drawing Bohr Diagrams

Draw a  Bohr Diagram for the element K.
19 Potassium +         protons= 19
          39                  atomic mass= 39
                                neutrons=20













Why does K form an ion with a 1+ charge?
Potassium forms an ion with a 1+ charge because it needs to loose an extra protons to
 make it have a full valence shell.

Draw a  Bohr Diagram for the element S.
16 Sulphur 2-   protons= 16
      28.0           atomic mass= 28
                       neutrons= 12










Why does S form an ion with 2- charge?
Sulphur has a charge of 2- because it need two more electrons in order to have a full valence shell.


-Atoms are elctrically neutrl
-2 different models can be used to describe electron configuration
    -energy level model
   -Bohr Model
-Electrons occupy shells which are divided into orbitals
     -2 e- in the first orbital
     -8 e- in the second orbital
    - 8 e- in the third orbital

eg. Beryllium
      2e-
     2e-
9-4 BE

~christina chow :]