Metals
Non-Metals
Noble-Gases
Transition Elements
Actinoids
100
Aluminum
What is AL?
100
Hydrogen
What is H?
100
Helium
What is HE?
100
Zinc
What is ZN?
100
Plutonium
What is PU?
200
Tin
What is SN?
200
Carbon
What is C?
200
Neon
What is NE?
200
Copper
What is CU?
200
Uranium
What is U?
300
Lead
What is PB?
300
Sulfur
What is S?
300
Argon
What is AR?
300
Iron
What is FE?
300
Lawrencium
What is LR?
400
Thallium
What is TL?
400
Selenium
What is SE?
400
Krypton
What is KR?
400
Cobalt
What is CO?
400
Mendelevium
What is MD?
500
Gallium
What is GA?
500
Phosphorus
What is P?
500
Xenon
What is XE?
500
Gold
What is AU?
500
Einsteinium
What is ES?