Home
Class 12
CHEMISTRY
Paramagnetic character of transition ele...

Paramagnetic character of transition elements of 3d series increases upto Mn and then decreases with increase in atomic number. Explain.

Text Solution

Verified by Experts

Along 3d-transition series, from `._(21)Sc` to `._(25)Mn` number of unpaired electron increases as each additional electron occupies one vacant d-orbital. But after Mn the additional electron goes to the same orbital already having one electron goes to the same orbital already having one electron i.e., pairing takes place. Therefore number of unpaired electron decreases along the period with increasing atomic number after Mn and this is the reason why paramagnetic character decreases going from Mn to Zn.
Promotional Banner

Topper's Solved these Questions

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise QUESTION - ANSWER ZONE FOR BOARD EXAMINATION (VERY SHORT ANSWER TYPE)|38 Videos

  • D - AND F - BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise QUESTION - ANSWER ZONE FOR BOARD EXAMINATION (SHORT ANSWER TYPE)|41 Videos

  • COORDINATION COMPOUNDS OR COMPLEX COMPOUNDS

    CHHAYA PUBLICATION|Exercise PRACTICE SET 21|2 Videos

  • ELECTROCHEMISTRY

    CHHAYA PUBLICATION|Exercise PRACTICE SET 4(Answer the following questions)|14 Videos

Similar Questions

Explore conceptually related problems

In case of transition elements of the first series (from Sc to Cu), why does the density increase with increase in atomic number ?

Why does the paramagnetic nature of the 3d transition series increase till Cr and then decrease regularly?

Atomic radii of the transition elements do not decrease significantly, with increase in atomic no. Give reason.

Covalent character of transition metal halide increases as the oxidation number of the metal increases. Explain.

The decrease in the size of the lanthanoids with increase in atomic number is known as __________.

The decrease in atomic size of the transition elements is comparatively less than the increase in the atomic number. Why?

Atomic radius of elements in a period decrease with increase in atomic number but for inert gases it increases. Why?

The basicity of oxides and hydroxides of lanthanoids ____________ with increase in atomic number.

In case of elements belonging to the same group, ionic radii_____with increase in atomic number.