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Chemistry, 05.07.2019 22:30 itsyagirl11076

The element beryllium (be, atomic number 4 and atomic mass 9) is right above magnesium (mg, atomic number 12 and atomic mass 24) in the periodic table. how many more electrons does magnesium have than beryllium?

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The element beryllium (be, atomic number 4 and atomic mass 9) is right above magnesium (mg, atomic n...
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