posted by Josh .
Use chemical principles of atomic structure and or chemical bonding to explain each of the following.
1. At 25.0 degrees C and 1atm, F2 is a gas, whereas I2 is a solid.
2. The melting point of NaF is 993 degrees C, whereas the melting point of CsCl is 645 degrees C.
These are thought questions. We shall be happy to critique your thoughts.