Examples of Models
of Elements
0₂
Oxygen
He
Helium
S₁
Sulfur
Examples of Models of Compounds
A. Only elements are gases.
H₂O
Water
CO₂
Carbon dioxide
What is the difference between an element and a compound?
B. Only elements have one kind of atom.
C. Only elements have an odd number of atoms.
D. Only elements form large molecular structures.
NH,
Ammonia