Which of these charges has the greatest magnitude

magnitude means absolute value, so the one that is greastest, like |-7| and |4| even id |-7| is a negative number, but it is still the one farthest away from 0, so |-7| is greater than |4|.

That is the way to find the greatest magnitude, but because I don't know your numbers so I can not answer your question, but this is the way to solve for it.

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your answers are a,b,,e and f

i hope this

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a