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Answer:
Positive and negative ions
Explanation:
when these two come together it is considered ionic bonding.
Answer:
The term matter refers to anything that occupies space and has mass—in other words, the “stuff” that the universe is made of. All matter is made up of substances called elements, which have specific chemical and physical properties and cannot be broken down into other substances through ordinary chemical reactions.
Explanation:
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Inge Lehmann's discovery of a solid outer core in Earth's layers. Hope I helped! Please mark as Brainiest!
