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Cations have a positive charge e.g. M^+

Anions have a negative charge e.g. X^-

Becausethey have opposite charges they are attracted to each other, by electrostatic force.

Ther analogy is two different magnets. The north pole of one magnet is attracted to the south pole of the other magnet.

However, the two north poles will repel as will the two south poles.

So a Cation M^+ will combine with an anion X^-

M^+ + X^- = MX .

Hover the charges MUST also baloance.

So a cation of M^(2+) will need two anions of X^-

M^(2+) + 2X^- = MX2

2M^+ + X^(2-) = M2X

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lenpollock

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4mo ago
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12y ago

Ionic bonds are formed by the attraction between oppositely charge ions.

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Q: Why are ions held together in a ionic bond?
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