PS Benchmark #3 Review

Match it! Select the correct answer from the pull down...Good luck!

All group 18 elements are called __________________

How many atoms are in the compound CH4?

Who developed the concept of buoyant force?

What category of elements contain properties of metals and nonmetals?

A red rose will look red because it

If an atom is neutral, the number of protons is equal to the number of

The atomic number of an atom is always equal to the number of what subatomic particle?

How many neutrons does Carbon have?