Periodic Table

What is the periodic table?

• a chart that lists all the molecules that exist in the universe
• a chart that show all the elements scientists have discovered
• a chart that shows all the compounds found in the world
• a chart tha shows what time periods elements were discovered in

What does an atom's atomic number represent?

• the number of protons in an element
• an elements state at room temperature
• how metallic an element is
• the number of atoms in a compound

What do the colors on the periodic table show?

• Which element it is
• the metallic properties of the element
• the types of compounds the element can make
• whether the element is a solid, a liquid, or a gas at room temperature

Which of the following is a characteristic of a metal?

• it is a liquid at room temperature
• it conducts heat and electricity
• it doesn't have an atomic number
• it cannot be melted down

Why isn't water on the periodic table?

• because it is a liquid at room temperature
• because it doesn't have any protons
• because it is a compound
• because it is not made up of atoms

How is the periodic table helpful to scientists?

• It allows them to see how many electrons are in a compound
• it shows what newly discovered elements will be named
• it shows them all the compounds elements can make
• it helps them find information quickly

When scientists see the letters "Au" they know it means gold.  What is AU

• the atomic number
• the element symbol
• the color
• the element's section