Why do transition metals have strong metallic bonding?
Correct answer: D. Both s and d electrons take part in bonding
- A. Because of high melting point
- B. Because d-electrons of the outer shell take part in bonding
- C. Because s-electrons of the outer shell take part in bonding
- D. Both s and d electrons take part in bonding
Explanation
Metallic bonding is a type of chemical bonding that arises from electrostatic attractive forces between conduction electrons in the form of an electron cloud of delocalized electrons. The reason for metallic bonding in transition metals is that they can involve the 3d electrons in the delocalization as well as the 4s. The more electrons you can involve, the stronger the attractions tend to be.
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About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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