Atoms and Molecules

What are the tiny particles that make up matter?

• protons, nucleus, neutrons

• neutrons, positive, negative

• protons, neutrons, electrons

• electrons, protons, eggos

What part of the atom has a positive charge?

• protons

• neutrons

• electrons

• nucleus

What part of the atom has a negative charge?

• protons

• neutrons

• electrons

• nucleus

Which part of the atom has a neutral charge? (no charge)

• proton

• neutron

• electron

• nucleus

• one hydrogen atom and two oxygen atoms

• two hydrogen atoms and one oxygen atom

• two hydrogen atoms and two oxygen atoms

• one chlorine atom and two oxygen atoms

Sodium is an _______________

• element

• compound

• salt

• molecule

Which of the models below represent a molecule? 

• A
• B
• C
• D

Which of the models below represent an atom? 

• A
• B
• C
• D

Elements are made of 

• many types of atoms 
• the periodic table
• one type of atom 
• molecules 

All matter is made of 

• energy 
• atoms 
• electrons 
• compounds