Who do you prefer with Caroline Forbs (The vampire diaries) Klaus Mikaelson or Stefen Salvatore

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

Sally is making a model of a magnesium atom with an atomic mass number of 24 for her chemistry class. she has foam balls for the protons, neutrons, and electrons. she has added 6 neutrons to her model so far. how many more neutrons does she need to add to complete her neutral atom of magnesium?

What is the compound name for the formula [ru(en)2cl2]2+ and [co(en)cl2br]-