Question

answer each question about the following atom when it becomes an ion. iodine determine the ionic name. write the chemical symbol and charge. the ionic charge of is achieved when the atom electrons.

Explanation:

Step1: Recall ionic naming for halogens

Halogens gain one electron to form anions. Iodine is a halogen. The ionic name of iodine is iodide.

Step2: Determine chemical symbol and charge

The chemical symbol of iodine is I. When it forms an ion, it gains one electron, so the charge is - 1. The ion is written as $I^-$.

Step3: Explain how ionic - charge is achieved

Iodine has 7 valence electrons. It achieves a stable octet (noble - gas electron configuration) by gaining 1 electron. So the ionic charge of - 1 is achieved when the atom gains 1 electron.

Answer:

• Ionic name: Iodide
• Chemical symbol and charge: $I^-$, - 1
• The ionic charge of - 1 is achieved when the atom gains 1 electron.