Subjective Type

Give reason for: Transition metals have high enthalpies for atomisation.

Solution

Because of large number of unpaired electrons in their atoms, the transition metals have strong interatomic interactions and hence stronger bonding between atoms, resulting in higher enthalpies of atomisation.

SIMILAR QUESTIONS

d - block and f - block Elements

The transition elements have

d - block and f - block Elements

Why first ionization enthalpy of $$Cr$$ is less than that of $$Zn$$?

d - block and f - block Elements

Ionization enthalpies of $$Ce, Pr $$ and $$Nd$$ are higher than $$Th, Pa$$ and $$U$$. Why?

d - block and f - block Elements

Give reason: The $$E^{\circ}$$ value for the $$Mn^{3+}|Mn^{2+}$$ couple is much more positive than that for $$Cr^{3+}|Cr^{2+}$$ couple or $$Fe^{3+}|Fe^{2+}$$ couple.

d - block and f - block Elements

Give reason: The enthalpies of atomisation of transition elements are high.

d - block and f - block Elements

Explain: The enthalpies of atomisation of transition metals are quite high.

d - block and f - block Elements

The elements of 3d transition series are given as: $$Sc$$ $$Ti$$ $$V$$ $$Cr$$ $$Mn$$ $$Fe$$ $$Co$$ $$Ni$$ $$Cu$$ $$Zn$$ Copper has exceptionally positive $$E_{M^{2+}/M}^{\circ}$$ value. Why?

d - block and f - block Elements

Account for: $$E^{\circ}_{M^{2+}/M}$$ values for transition metals show irregular variation.

d - block and f - block Elements

Which of the following has second ionisation potential less than expected?

d - block and f - block Elements

Ionisation potential values of d-block elements as compared to ionization potential value of f-block elements are

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