We’re being asked to complete the sixth row of the table.

Recall that the symbol for an element or ion is as follows:

Recall that:

• Atomic Mass = A = number of protons + number of neutrons
• Atomic Number = Z = number of protons = number of electrons
• Net charge
  • number of electrons lost if positive (+)
  • number of electrons gained if negative (-)

For the 1st Column

The symbol is already given.