Single Choice

Transition metals are often paramagnetic owing to:

Ahigh m.p. and b.p. of transition metals
Bpresence of vacant d-orbitals
Cpresence of one or more unpaired d-electrons
Correct Answer
Dtheir less electropositive nature as compared to the elements of groups IA and IIA

Solution

The general outer electronic configuration of d-block elements is $$(n-1)d^{1-10}\ ns^{1-2}$$. Hence, d - block elements often have one or more unpaired d - electrons.

Due to presence of these unpaired electrons, transition elements show paramagnetism.

Therefore transition elements are often paramagnetic due to presence of one or more unpaired d electrons.

Option C is correct.

SIMILAR QUESTIONS

d - block and f - block Elements

Elements which generally exhibit variable oxidation states and form colored ions are ___________.

d - block and f - block Elements

Transition metals are less reactive than alkali metals because they have:

d - block and f - block Elements

Identify the metal that forms colourless compounds.

d - block and f - block Elements

$$V_2O_5$$ reacts with alkalies as well as acids to give:

d - block and f - block Elements

Metallic radii of some transition elements are given below. Which of these elements will have the highest density? Element $$Fe$$ $$Co$$ $$Ni$$ $$Cu$$ Metallic radii/pm 126 125 125 128

d - block and f - block Elements

Which of the following example is not correctly matched?

d - block and f - block Elements

Which one of the following ions is the most stable in aqueous solution? (At. No. are: $$ Ti = 22, V = 23, Cr = 24, Mn = 25$$)

d - block and f - block Elements

The elements of $$3d$$ transition series are given as : $$Sc,\ Ti,\ V,\ Cr,\ Mn,\ Fe,\ Co,\ Ni,\ Cu,\ Zn$$ Which element is soft and why?

d - block and f - block Elements

Name the type of elements , which have their Two outermost shell incomplete - ...............

d - block and f - block Elements

The highest magnetic moment is shown by the transition metal ion with which of the following outermost electronic configuration?

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