Answer:
Valence electrons or outer electrons are most important as they participate in bonding. The octet rule states that atoms gain, lose, or share valence electrons to have filled energy levels.. this gives atoms a stable configuration like that of the nearest noble gas.
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Answer:
Na(OH)4
Explanation:
Look at the charges and add them up
Na(OH) Na(OH)
That is actually physics because it talks about motion.
C. the expansion of the universe is accelerating
