Compounds quiz

Molecules are made of

• cotton candy

• two or more atoms bound together

• only one kind of atom

• protons

Which of the following materials is an element?

• Water

• air

• sugar

• gold

Atoms and molecules are

• examples of particles

• the same thing

• made of only one kind of atom

• elements

Which example is a kind of compound?

• aluminum

• sodium

• baking soda

• potassium

According to its position on the Periodic Table, which of the elements below is the most reactive?

• Potassium (K)

• Iron (Fe)

• Mercury (Hg)

• Argon (Ar)

Sodium (Na) and Potassium (K) have very similar chemical characteristics. This is because

• They both have one electron in their outer energy level

• They are in the same family

• They are actually the same element with a different name.

• They are both at the bottom of the periodic table.

Xenon is an inert gas. This means that...

• It will react with almost everything.

• It has a low atomic mass

• It is an unstable element

• It won't react with anything

True or False: Pure water is an element

• True

• False

The atoms that form a molecule are held together ...

• With Superglue

• With magnetic charge

• With chemical bonds

• With electricity

True or False: All of the elements known to Mankind were discovered thousands of years ago.

• True.

• False