why 18 electron rule is followed for 3d metals in middle of series
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Why 18 electron rule is followed for 3d metals in middle series……
Explanation:
This is because the metals that are complex show diverse structural variations thus exhibiting their distinct chemical properties. These are in general termed as organometallic compounds or transitional metals. In general, these metals use ns and np orbitals while those that are transitional make use of (n-1)d, ns, np orbital structure.
So, it is obvious that these tend to act as both donors and acceptors of electrons. As per the definition, 18 valence rule is applicable as they comprise of (metal) d electron. They obtain stability only by formation of ionic bonds or by other neutral method.
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