What is all matter made out of?

How many types of atoms are there?

What do scientists use to see atoms?

What is element?

What is an example of an element?

What are elements classified as?

What are the properties of metals?

What is special about mercury?

What is special about non-metals?

What are the properties of non-metals?

What is special about bromine?

What are some examples of non-metals?

How many of the 118 elements on the periodic table occur in nature?

How does the periodic table list the elements?

What is the symbol for Calcium?

What is atomic number of potassium (K)?

What is the symbol for gold?

What are monatomic elements?

What are molecules?

What are crystal lattices?

What is an example of the few non-metals that have lattices?