I need explainations on how to solve the follwing problems. Thank you.

1. (4) How many electrons are in each energy level of the following elements? a. H b. F c. Ar d. K 2. (4) Provide the charge when an ion is formed from each of the following: a. sodium b. phosphorus c. magnesium d. fluorine 3. (18) Complete the following table: 4. (2) Name the following poryatomic ions: a. PO43 b. CO32 5. (2) Write the formula for the following polyatomic ions: a. nitrate b. sulfate