BOHR DIAGRAM WORKSHEET
NAME:
Complete the table with atomic number and Bohr Diagrams for the following twenty elements. Remember that the first
energy level (also called a shell) only holds 2 electrons. All the remainder levels hold a maximum of 8 electrons. The number of
electrons must equal the number of protons in a neutral atom. Some diagrams are completed for you.
atomic number
3
1
electrons
2
2nd energy level
1p+
0n0
1st
protons and
neutrons
3p++
4p
4n0
energy level
atomic symbol
Li
He
3
3p+
4n0
Li
Be
B
C
N
O
F
Ne
Si
P
S
Cl
Ar
11
11p+
12n0
Na
Mg
Al
20
19
K
Ca