What is the 4th element?
Hydrogen
Sulfur
Beryllium
Magnesium
What is the 12th element?
Argon
Sodium
Calcium
What is the 20th element?
Potassium
Boron
What is the 18th element?
Helium
Nitrogen
Aluminum
What is the 5th element?
Silicon
Lithium
What is the 14th element?
Oxygen
Fluorine
What is the 13th element?
Neon
What is the 10th element?
What is the 1st element?
What is the 3rd element?
What is the 6th element?
Carbon
What is the 2nd element?
What is the 8th element?
What is the 11th element?
Chlorine
What is the 7th element?
Phosphorus
What is the 16th element?
What is the 19th element?
What is the 15th element?
What is the 17th element?
What is the 9th element?