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Classification Of Elements And Periodicity In Properties

Question

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Gallium was named by Mendeleev as

Solution

Eka-aluminium.

Some More Questions From Classification of Elements and Periodicity in Properties Chapter

Which property is the basis of long form of periodic table?

How many elements are placed in each period of the p-block?

What is the number of groups in: (i) p-block (ii) d-block?

How many elements are present in:
(i) second period
(ii) fourth period
(iii) sixth period?

What is the name given to the s-block elements?

To which block the element with outer electronic configuration 4s²3d¹⁰ belongs?

Why are there 10 elements in each series of d-block?

In terms of electronic configuration,
what is common in a given period and group?

Give the general electronic configuration of
(i) Transition elements (ii) Inner transition elements.

Name the group and period to which an element with Z = 15 belongs ?

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