Download Electron Dot Assignment

Atomic Diagrams Assignment Instructions
SAMPLE PROBLEM:
 Draw an energy level diagram for the element. magnesium
 Draw an electron dot diagram for the element listed above.
Step 1: Find magnesium on your
periodic table of the elements.
Step 2: Print the symbol in the center
of the box.
1
1
IA
1
1
2
2
IIA
3
4
5
<<<<<<<<<
H
1.00794
Mg
hydrogen
2
3
4
Li
Be
6.941
lithium
Step 3: Determine the number of
energy levels in the atom by looking at
which period it is in.
Then, draw in the same number
of energy levels as the period
number
Mg
3
4
9.0122
beryllium
11
12
Na
Mg
22.99
24.3050
sodium
magnesium
IIIB
IVB
VB
23
19
20
21
22
K
Ca
Sc
Ti
V
39.098
40.0800
44.956
47.88
50.94
potassium
calcium
scandium
titanium
vanadium
Energy Level Rules



1st energy level – maximum of 2 electrons
2nd energy level – maximum of 8 electrons
outside energy level - maximum of 8 electrons
Step4: Finally, place dots on the
energy levels to represent the
appropriate number of electrons
according to the rules stated in this
box.
Mg
Step 5:
 Print the element symbol
 Place dots for each “valence” electron around the
symbol. (Valence electrons are the electrons in the
outside energy level.)
Note: It is customary to place the dots in pairs around the
symbol.
Finished electron dot diagram for magnesium
Mg
Atomic Diagrams Assignment
Name
1. In the boxes below, draw a energy level diagrams for the following elements.
carbon
beryllium
neon
argon
phosphorus
fluorine
boron
hydrogen
sodium
aluminum
chlorine
silicon
nitrogen
sulfur
Your diagram must show the arrangement of all of the electrons in the atom. Print the element
symbol in the center of the diagram.
Example:
Mg
2. In the boxes below, draw electron dot diagrams for each of the elements listed in #1.
Print the element symbol in the center of the diagram.
Mg