TO which group Lanthanoids and acti...

TO which group Lanthanoids and actinides belongs ?

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`3^(rd)` group

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Lanthanoids are

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

Lanthanoid contraction implies

Since all lanthanides and actinides belong to group IIIB or 3rd group they have common oxidation state of +3 as the most stable state. In addition to +3, they also show +2 and +4 states also. M+2 states they are good reducing agents. Actinides show higher oxidation states of +5, +6 and +7. For them +3 state is not the most stable state especially for the flfst four elements Based upon the information above answer the following questions Actinides which show higher uxidastion state +5, +6 and +7 states and respectively are

Since all lanthanides and actinides belong to group IIIB or 3rd group they have common oxidation state of +3 as the most stable state. In addition to +3, they also show +2 and +4 states also. M+2 states they are good reducing agents. Actinides show higher oxidation states of +5, +6 and +7. For them +3 state is not the most stable state especially for the flfst four elements Based upon the information above answer the following questions Lanthanides which show powerful reducing action in +2 state

What are Actinides ?

A Chemical compound has the following Lewis notation : To which groups the elements X and Y belong ? (AS_2)

To which group and period does the element 'D' belong ?

To which group and period does the element 'c' belong ?

What is Lanthanoid contraction ?

VGS PUBLICATION-BRILLIANT-CLASSIFICATION OF ELEMENTS -THE PERIODIC TABLE -CREATIVE QUESTIONS FOR NEW MODEL EXAMINATION (SECTION -I)

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