Question

what is the charge how you know charge is positive or negative​

Answer 1

Answer:

That means an atom with a neutral charge is one where the number of electrons is equal to the atomic number. Ions are atoms with extra electrons or missing electrons. When you are missing an electron or two, you have a positive charge. When you have an extra electron or two, you have a negative charge

Explanation:

in order to tell the sign of an object charge, you need another object with a known positive or negative charge. If you rub a piece of glass with silk, it will have a positive charge (by convention). ... If your object is repelled by the glass, then it has the same charge as the glass (positive)

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Answer 2

Answer:

If the charges are atractting there particle means the particle are positive charge . If the charges are repeling there particle means the particle are negetive charge .