Answer: 2hqu
Explanation: because you have to add them
Answer:
should be appendix, I can't see any image tho.
I would say when an atom has its valence electron shell filled like a noble gas has, it is not easily changed.
I’m not entirely sure of what you’re asking, but if you’re talking about bonding then it would be an ionic bond that is not easily changed.
The first word could be: pairs and the second: relax
