There are some metals hard which indicates the presence of covalent bonds. . Higher the number of unpaired electrons present in the transition metals, more is the number of covalent bonds formed by them. This further increases the hardness of the metal and its strength.
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Explanation:
There are some metals hard which indicates the presence of covalent bonds. . Higher the number of unpaired electrons present in the transition metals, more is the number of covalent bonds formed by them. This further increases the hardness of the metal and its strength.
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