Pls help i’m dying *marking brainliest*

Draw the more stable lewis dot structure for bro2-

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

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?