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प्रश्न
The actinoid elements which show the highest oxidation state of +7 are ____________.
पर्याय
Np, Pu, Am
U, Fm, T
U, Th, Md
Es, No, Lr
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उत्तर
The actinoid elements which show the highest oxidation state of +7 are Np, Pu, Am.
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संबंधित प्रश्न
Which of the following oxidation states is most common among the lanthanoids?
Justify the position of lanthanides and actinides in the periodic table.
What are actinoids? Give three examples.
Compare lanthanoids and actinoids.
Actinoid contraction is greater from element to element than the lanthanoid contraction, why?
Why do zirconium and Hafnium exhibit similar properties?
The electronic configuration of gadolinium (Atomic number 64) is ______.
In the modern periodic table, elements are arranged in order of increasing atomic numbers which is related to the electronic configuration. Depending upon the type of orbitals receiving the last electron, the elements in the periodic table have been divided into four blocks, viz, s, p, d and f. The modern periodic table consists of 7 periods and 18 groups. Each period begins with the filling of a new energy shell. In accordance with the Arfbau principle, the seven periods have 2, 8, 8, 18, 18, 32 and 32 elements respectively. The seventh period is still incomplete. To avoid the periodic table being too long, the two series of f-block elements, called lanthanoids and actinoids are placed at the bottom of the main body of the periodic table.
The element with atomic number 57 belongs to ______.
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.
