An electron has a charge of −1.6 × 10−19 c. how many electrons would be needed to produce a net charge of -5.5 × 10−7 c? round the final answer to one decimal place.

Using the periodic table, complete the table to describe each atom. type in your answers

Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this

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