It's do at 11 please help.
5. Be prepared to prove your understanding of atomic shells.
6. Understand the basics of isotopes and ions.
7. Know about the term "valence" and how it is used with regard to the atom.
8. Know the basics of acids and bases.
9. Understand the organization of the elements in the periodic table.
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Chemistry, 22.06.2019 19:00
Sum of brother and sisters age is 26. four times the brothers age is subtracted from three times the sisters age, the difference is 8. what are the ages of the brother and sister?
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The point along a planet's orbit where it is closest to the sun is called the
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It's do at 11 please help.
5. Be prepared to prove your understanding of atomic shells.
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