Periodic Table
Sodium (Na)
11
Potassium (K)
19
Phosphorus (P)
15
Chlorine (Cl)
17
Magnesium (Mg)
Beryllium (Be)
4
Fluorine (F)
9
Helium (He)
Oxygen (O)
8
Neon (Ne)
10
Hydrogen (H)
1
Carbon (C)
6
Aluminum (Al)
13
Nitrogen (N)
Sulfur (S)
16
Argon (Ar)
18
Lithium (Li)
3
Calcium (Ca)
20
Silicon (Si)
14
Boron (B)
5