Shell of an atom is positively charged why

atoms was the realization that electrons are arranged in shells that surround a central positively charged nucleus. ... Each ion thus attains a closed outer shell of electrons and takes on a spherical shape.

Explanation:

Hope it helps :)

- both b and d.

-since b and d are the closest coastlines then that makes it the most affected.

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catya your not at all which answer i've seen you do this on another question!