(a) Lanthanoids and actinoids are belong...

(a) Lanthanoids and actinoids are belongs to 3rd group. b) Lanthanoids and actinoids are called as transition elements.

a and b are wrong

a and b are correct

a is correct but b is wrong

a is wrong but b is correct

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TO which group Lanthanoids and actinides belongs ?

Which block elements are called as transition metals ?

Why are d-block elements called transition elements ?

Which block elements are called the inner transition elements ?

Which set of elements among the following are called non-transitional elements

which block elements are called Lanthanoids / actinoids ?

The f-block consists of the two series lanthanoids and actinoids. Because Lanthanum closely resembles the Lanthanoids. The Lanthanoid resemble one another more closely than do the members ofordinary transition elements in any series. They have only one stable oxidation state. The chemistry of the actinoids is on the other hand, much more complicated. The complication arises partly owing to the occurance ofa wide range of oxidation states in these elements and partly because their radioactivity creates special problems in their study Wrong statement of the following is

Assertion (A) : Lanthanides and Actinides are called as Inner Transition Elements. Reason (R) : They are the part of Transition Elements.

The elements belonging to groups from III A to VII A are called :

VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS-THE PERIODIC TABLES-EXERCISE

Assertion (A): Na' is a s-block element Reason (R) : 'Na' gets its las...
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Assertion (A) : 'Cl' is a non-metal. Reason (R): Non-metal has five or...
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(a) Lanthanoids and actinoids are belongs to 3rd group. b) Lanthanoids...
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Assertion (A) : Lanthanides and Actinides are called as Inner Transit...
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Why do elements in the same group have similar physical and chemical p...
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The pair of elements that have similar chemical properties are
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Pavan (P) : The general electronic configuration of alkali metal famil...
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Assertion (A): ‘H' & 'He' belongs to period - 1. Reason (R) : 'H & 'He...
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Assertion (A): The first period in periodic table contain only two ele...
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Suneetha (A) : Third period contain 18 elements, because it has 3 subs...
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James (A) : The positive ions of an element has less in size than its ...
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Balu (B) : Valence of an element with respect to hydrogen is the numb...
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Valeney of Ca is
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Assertion (A) : Atomic radii increase from top to bottom in a group of...
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Assertion (A): Atomic radii of elements decrease across a period from ...
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Assertion (A) : The size of Na^+ ion is less than 'Na' atom. Reason (R...
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It is easier to remove one electron from O than N because Nitrogen has
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Which of the following property decreases down a group :
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Actinides belongs to period.
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Ionization energy is not depending on
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