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प्रश्न
Which one of the following is not correct?
पर्याय
La(OH)2 is less basic than Lu(OH)3
In lanthanoid series ionic radius of Ln3+ ions decreases
La is actually an element of transition metal series rather than lanthanide series
Atomic radii of Zr and Hf are same because of lanthanide contraction
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उत्तर
La(OH)2 is less basic than Lu(OH)3
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संबंधित प्रश्न
Which one of the following statements related to lanthanons is incorrect?
What are inner transition elements?
Justify the position of lanthanides and actinides in the periodic table.
Compare lanthanoids and actinoids.
Out of Lu(OH)3 and La(OH)3 which is more basic and why?
The elements in which electrons are progressively filled in 4f-orbital are called ______.
Electronic configurations of four elements A, B, C and D are given below:
(A) 1s22s22p6
(B) 1s22s22p4
(C) 1s22s22p63s1
(D) 1s22s22p5
Which of the following is the correct order of increasing tendency to gain electron:
Illustrate by taking examples of transition elements and non-transition elements that oxidation states of elements are largely based on electronic configuration.
Electronic configuration, [Ne] 3s2 3p4 is for ______.
Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R:
Assertion A: Size of Bk3+ ion is less than Np3+ ion.
Reason R: The above is a consequence of the lanthanoid contraction.
In the light of the above statements, choose the correct answer from the options given below.
