2. What is an atom?
• The smallest unit of an element.
• Greek word “uncuttable”
• The building blocks of all matter.
3. What is an atom made of? Charge?
• Protons-positive charge
• Neutrons- neutral/no charge
• Electrons- negative charge
4. What is the center of the atom called?
What parts are housed there?
What parts are housed there?
• The nucleus
• The proton and neutron
5. What does an atom contain a lot of?
• Empty space
6. How can an atom act like a solid
with so much empty space?
with so much empty space?
• The electrons are a strong particle.
They are moving around so fast that it
appears solid. Nothing is able to break
through.
7. What is an element? What is a molecule?
• An element is a material that cannot be
broken down into anything simpler by
chemical reaction.
• Molecules are particles with more than
one atom joined together.
8. Complete this phrase
• Atoms join together to make molecules.
Molecules grouped together make
objects.
9. What tool do scientists use to help
organize information about elements?
organize information about elements?
• The periodic table
10. What tool do scientists use to help
organize information about elements?
organize information about elements?
• The periodic table
