What is the basis for arranging elements in the periodic table?

• Increasing atomic number

• Decreasing atomic number

• Increasing atomic mass

• Alphabetical order

How many valence electrons do elements in Group 14 have?

• Two

• Four

• Six

• Eight

Which period contains elements with valence electrons in the third main energy level?

• Period 3

• Period 2

• Period 1

• Period 4

Where are non-metals generally located on the periodic table?

• Middle

• Bottom

• Right side

• Left side

What is another name for the elements in Group 1?

• Noble gases

• Halogens

• Alkali metals

• Alkaline earth metals