1. Concerning the basic structure of the atom:
a) 4He makes up about 20% of all the matter in the universe. How many protons, electrons and neutrons does it have?
b) 19F is unique in that it is the only isotope of fluorine. How many protons, electrons and neutrons does it have?
2. What particles are in the nucleus and what force holds them together?
3. What is the equation for Coulombic force and why is it important in chemistry?
4. What is the charge on the chloride ion and why does it have this charge?
5. What is the difference between hydrogen chloride and hydrochloric acid?
6. Name the following compounds:
a) FeCl3
b) Al(OH)3
c) NO2
d) Na3PO4
e) H2SO4 (aq)
f) CaCO3
g) NH3
h) KNO2