I can't get a straight answer for this question to save my life! Help me! PLEASE!!! Gahhhh :P
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Because atoms as a whole are neutral! So if they contain negatively charged particles, they must also contain positively charged particles to make the total charge zero.
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since it was know that electric charges of the same kind, what ever electric charge is repel each other very strongly AND ALSO that matter as a whole appears to be electrically neutral. he concluded that there must be opposite charges to balance out what he found
Ben Franklin took what was know about electricity and guessed there was only one kind of "electric fluid" but there could be an excess or maybe not enough and experiments indicated that if you scraped some off it tried to get back where it belonged
Not really a bad idea . later other experiments showed the existence of two kinds of electric charge and after that in the early 1900s other particles, like Neutrons had mass but no charge at all.
modern atomic theory is very complicated and still being investigated.
Ben Franklin took what was know about electricity and guessed there was only one kind of "electric fluid" but there could be an excess or maybe not enough and experiments indicated that if you scraped some off it tried to get back where it belonged
Not really a bad idea . later other experiments showed the existence of two kinds of electric charge and after that in the early 1900s other particles, like Neutrons had mass but no charge at all.
modern atomic theory is very complicated and still being investigated.