11. covalent bonding (with an electronegativity difference below 0.5) results when fluorine bonds with a. iodine.
b. hydrogen.
c. potassium.
d. fluorine.

How are elements arranged in a periodic table

What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?

11. phosphorus-32 is radioactive and has a half life of 14 days. how much of a 124 mg sample of phosphorus-32 is present after 56 days? a) 7.75 mg b) 15.5 mg c) 31.0 mg d) 62.0 mg