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Chemistry, 07.12.2020 21:00 HighSchool97654

4. On the periodic table, which noble gas is closest to sodium, Na? What must happen to a sodium atom in order for it to have a noble gas electron configuration?
5. When bromine gains an electron to become a bromine ion with a -1 charge, it ends up with the
noble gas electron configuration of krypton. Why doesn't it become a krypton atom?

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