Element Classes

Match the element with the class of elements to which it belongs.

Oxygen (atomic #8)
Chlorine (atomic #17)
Chromium (atomic #24)
Germanium (atomic #32)
Sulfur (atomic #16)
Iodine (atomic #53)
Krypton (atomic #36)
Potassium (atomic #19)
Lithium (atomic #3)
Strontium (atomic #38)
Copper (atomic #29)
Silicon (atomic #14)
Nitrogen (atomic #7)
Zirconium (atomic #40)
Neon (atomic #10)
Iron (atomic #26)
Magnesium (atomic #12)
Carbon (atomic #6)
Fluorine (atomic #9)
Cesium (atomic #55)