Single Choice

In first transition series, the melting point of Mn is low because

ADue to $$d^{10} $$ configuration, metallic bonds are strong
BDue to $$d^7 $$ configuration, metallic bonds are weak
CDue to $$d^5 $$ configuration, metallic bonds are weak
Correct Answer
DNone of these

Solution

Due to $$ d^5 $$ configuration, metallic bonds are weak. $$ d^5 $$ orbital is half filled as a result 3d electrons are more tightly held by the nucleus and this reduces the de-localization of electrons resulting in weaker metallic bonding.

SIMILAR QUESTIONS

d - block and f - block Elements

Volatile metals like $$Zn, Cd$$ and $$Hg$$ are purified by :

d - block and f - block Elements

Which of the following group elements exhibits high melting and boiling points?

d - block and f - block Elements

Transition elements have high MP & BP due to:

d - block and f - block Elements

The maximum and minimum m. p. of $$1^{st}$$ transition and $$2^{nd}$$ transition series respectively are obtained with:

d - block and f - block Elements

These questions consists of two statements each, printed as assertion and reason, while answering these questions you are required to choose any one of the following responses. Assertion : Melting point of Mn is more than that of Fe. Reason : Mn has higher number of unpaired e than Fe in atomic state.

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 has the highest melting point and why?

d - block and f - block Elements

In the following transition elements, the lowest M.P. and B.P. is exhibited by

d - block and f - block Elements

Which of the following transitional metal has lowest boiling point (B.P.)?

d - block and f - block Elements

Transition elements show high melting points why?

d - block and f - block Elements

Transition elements show high melting points why?

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