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In 3rd series of transition elements, paramagnetic behaviour is maximum for Mn+2 and:

Correct answer: A. Cr3+

  • A. Cr3+
  • B. Ti3+
  • C. V3+
  • D. Zn2+

Explanation

Electronic configuration of chromium 3+ is [Ar] 3d3. Cr3+ has 3 unpaired electrons in its outer most shell and thus it's the element which shows the most paramagnetic behaviour out of the other options given. A paramagnetic electron is an unpaired electron. An atom is considered paramagnetic if even one orbital has a net spin. The unpaired electrons of paramagnetic atoms realign in response to external magnetic fields and are therefore attracted.

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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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