1. Section 2.1 – 2.2 Review

2. What are the three subatomic particles and their charge?
What is an atom?
Basic unit of matter
What are the three subatomic particles and their charge?
Proton +
Neutron +/-
Electron -
Where are each of the above located in the atom?
Proton – in nucleus
Electron – outside nucleus
Neutron – in nucleus

3. Who is this?

4. What is an isotope? What is a compound? What is a covalent bond?
Same element with a different number of neutrons
What is a compound?
Two or more elements combined
What is a covalent bond?
Bond that occurs when electrons are shared
What is an ionic bond?
Bond occurs when electrons are stolen

5. Name these 2 characters:

6. Water is the only substance known to do what?
What is adhesion?
Attraction of different molecules
What is cohesion?
Attraction of same molecules
What is a solution?
All components are evenly distributed
What is a suspension?
Mixture where components can still be seen