What is an element?

How many naturally occurring elements are there?

Who was the first inventor of the Periodic Table?

When two elements join, the end is usually what?

What do we call more than one type of element joined together?

How many hands (combining power) does group 6 have on the Periodic Table?

What is the main way we classify elements?

How did Dmitri Mendeleev list the elements in his Periodic Table?

What are reactants and products in an equation?

Where do you write other chemicals or special conditions in a equation?

What happens to atoms in a reaction?

How are balenced symbol equation more useful than a word equation? What do they tell us?

What do pure substances have?

Why do mixtures have a range of melting and boiling points?