Atoms Molecules Elements Compounds

What is the tiniest particle in the entire universe?

• cells

• atoms

• gases

• liquids

What is the term for combining 2 or more atoms together?

• atoms

• molecules

• compounds

• elements

What is the term for combining 2 or more DIFFERENT atoms together?

• atoms

• elements

• compounds

• molecules

TRUE OR FALSE:

Every compound is a molecule but not every molecule is a compound.

• TRUE

• FALSE

What is element?

• Substance that consists of only one type of atom.

• Substance that consists of one atom only.

So which of the following elements exist as molecule?

• chlorine gas, Cl₂

• oxygen gas, O₂

• neon gas, Ne

• argon gas, Ar

• hydrogen gas, H₂

So which of the following elements exist as atom?

• iron, Fe

• yellow sulphur, S₈

• bromine gas, Br₂

• argon gas, Ar

• silver, Ag