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Ionic bonds - Coggle Diagram
Ionic bonds
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Let's take an example: Sodium in group 1, with one valence electrons, meaning it needs to lose one to become stable and Chlorine in group 17 with 7 valence electron, meaning it need one valence electron to become stable.
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After the sodium atom loses 1 electron it become a positive ion, unlike Chorine which becomes a negative ion, since it gains an electron. (Chloride)
Now that the 2 atoms have opposite charges they are attracted to each other, which makes this an ionic bond.
In chlorine it is a gas found in pairs, and sodium is a solid found in ones, so every pair in chlorine needs 2 sodium atoms to bond.
Since each positive and negative charges attract the two bonds will attract looking like this,
instead of calling this an ion compound, we call it an ion CRYSTAL
How do ions form?
Since we know that opposite charges attract, and like charges repel, so in this case we need opposite charges to form an ionic compound.
A positive ions, is an atom with a frequency to LOSE an electron and since all metals have a tendency to LOSE electrons than a positive ion is most likely going to be a metal.
And you can guess it, the nonmetals are the negative ions since they gain the electrons. So we can conclude that ionic compounds occur between metals, and nonmetals.
All the blue colored elements are metals and the yellow colored elements are nonmetals.
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