Identify the incorrect statement among the following:

d-block elements show irregular and erratic chemical properties among themselves

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La and Lu have partially filled d orbitals only

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The chemistry of various lanthanoids are very similar

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4f and 5f orbitals are equally shielded

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Solution

The correct option is D 4f and 5f orbitals are equally shielded
4f orbital is an inner orbital and 5f orbital is an outer orbital so both are not equally shielded.

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Similar questions

Q. Statement 1: Transition metal compounds are often colored.
Statement 2: They frequently possess partially filled d-orbitals.

Q. Which one among the following is a transition element that occurs when the inner

3 d

orbitals is partially filled.

The statement that is not correct for periodic classification of elements is
(a) The properties of elements are the periodic function of their atomic numbers
(b) Non-metallic elements are less in numbers than metallic elements
(c) For transition elements, the 3d orbitals are filled with electrons after 3 p - orbitals and before 4s orbitals
(d) the first ionization enthalpies of elements generally increase with the increase in atomic number as we go along a period

The element in which electrons are progressively filled in 4f - orbital are called
(a) actinoids (b) transition elements (c) Lanthanoids (d) halogens

Q. The elements of the three transition series of the d - block are given below:

\begin{matrix} S c & T i & V & C r & M n & F e & C o & N i & C u & Z n Y & Z r & N b & M o & T c & R u & R h & R d & A g & C d L a & H f & T a & W & R e & O s & I r & P t & A u & H g \end{matrix}

In any transition series, as we move form left to right, the d - orbitals are progressively filled and their properties vary accordingly.
Which element do you expect to have the smallest atomic radius?

Identify the incorrect statement among the following:

The correct option is D 4f and 5f orbitals are equally shielded4f orbital is an inner orbital and 5f orbital is an outer orbital so both are not equally shielded.

The correct option is D 4f and 5f orbitals are equally shielded
4f orbital is an inner orbital and 5f orbital is an outer orbital so both are not equally shielded.