Find the missing side length to the nearest tenth of a millimeter. Enter your answer in the box.
5.2 mm
7 mm
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Which element forms an ionic bond with flourine? 1) fluorine 2) carbon 3) potassium 4) oxygen

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5