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  • Consider the following statements; (I) Rutherford name was associated with the development of the periodic table. (II) A metal M having electronic configuration <img alt="1s^{2}

Consider the following statements;

(I) Rutherford name was associated with the development of the periodic table.

(II) A metal M having electronic configuration 1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{1} is a d-block element

(III) Diamond is an element.

(IV) The electronic configuration of the most electronegative element is 1s^{2}2s^{2}2p^{5}.

 

Select the correct one from the given statements.

Option: 1

I, II, IV    


Option: 2

I, II, III, IV  


Option: 3

II, IV   


Option: 4

II, III   


Answers (1)

best_answer

(II) The d-block elements have general electronic configuration [noble]\left ( n-1 \right ) d^{1-10}ns^{0-2} It is the configuration of copper which belongs to d-block and group number 11th

(IV) The most electronegative element in the periodic table is fluorine and its electronic configuration is 1s^{2}2s^{2}2p^{5}.

1) Mendeleev's name was associated with the development of the periodic table.
3) Diamond is not an element. It is an allotrope of carbon.
 

Therefore, Option(3) is correct

Posted by

Suraj Bhandari

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