The body which has lost electrons becomes
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When an atom gains or loses an electron, it attains a net charge and becomes an ion. When electrons are lost (or donated), the resulting ion is called cation.
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it's simple.
a body which has lost electrons becomes cation.(+ve charge)
ex: magnesium
atomic no is 12
electronic configuration is 1s²2s²2p⁶3s²
it should leave it's outer most 2 electrons to became stable
when it leaves it's 2 electrons, it become Mg²+ cation
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