#1 - What is the periodic table? A. a chart that lists all the molecules that exist in the universe
B. a chart that shows all the elements scientists have discovered
C. a chart that shows all the compounds found in the world
D. a chart that shows what time period elements were discovered in

#2 - What does an element's atomic number represent?
A. the number of protons in an element
B. an element's state at room temperature
C. how metallic an element is
D. the number of atoms in a compound

#3 - What do the colors on the periodic table show?
A. which element it is
B. the metallic properties of the element
C. the types of compounds the element can make
D. whether the element is a solid, a liquid, or a gas at room temperature

#4 - Which of the following is a characteristic of a metal?
A. it is a liquid at room temperature
B. it conducts heat and electricity
C. it doesn't have an atomic number
D. it cannot be melted down

#5 - Why isn't water on the periodic table?
A. because it is a liquid at room temperature
B. because it doesn't have any protons
C. because it is a compound
D. because it is not made up of elements

#6 - How is the periodic table helpful to scientists?
A. it allows them to see how many electrons are in a compound
B. it shows what newly discovered elements will be named
C. it shows them all the compounds that elements can create
D. it helps them find information quickly

#7 - When scientists see the letters "Au", they know it means "gold". What is Au?
A. the atomic number
B. the element symbol
C. the color
D. the element's section