The Periodic Table

What is the chemical symbol for oxygen?
O
What does the atomic number of an element in the periodic table represent?
The number of protons in the nucleus
What is the chemical symbol for gold?
Au
Which element has atomic number 6?
Carbon
Which element is the lightest on the periodic table?
Hydrogen
What is the chemical symbol for sulfur?
S
Which element has the symbol Fe?
Iron
Which element has the symbol K?
Potassium
What is the chemical symbol for sodium?
Na
What is the chemical symbol for helium?
He
Which element has the highest atomic number that occurs naturally?
Uranium
What are the elements in group 18 called?
Noble gases
Which element has the symbol Ag?
Silver
Who is considered the inventor of the periodic table?
Dmitri Mendeleev
Which element is the most abundant in the universe?
Hydrogen