Metals usually melt when forming iron
The answer is O2.
The ionic charge of something can be determined by it's place in the periodic table.
Your answer would be (D), Noble Gases, or Inert Gases - The far right on the periodic table is also known as Group(0)., or Group 18 on the periodic table. Elements in this group includes, Neon(NE), Argon(AR), Krypton(KR), Xenon(XE), and Radon(RN).
Hope that helps!!!
Answer:
Freezing
Explanation:
When a liquid goes to a solid, this process is called freezing.
