1. Complete the sixth raw of the table.

Express your answers as signed integers. Enter your answers in order given in the table from left to right separated by commas.

Fill in the gaps in the following table:

Symbol	Co3+
Protons		34	76	80
Neutrons		46	116	120
Electrons		36		78
Mass number	59
Net charge			2+

2. For each of the following elements, and indicate whether it is a metal, metalloid, or nonmetal: Potassium, Iodine, Argon, Magnesium, and Sulfur.