First slide

Mendeleev's periodic table

Question

The element with Z = 106 belongs to ------ block

Easy

A

s-block
B

p-block
C

d-block
D

f-block

Solution

For the elements with Z = 104 -118,
Z- 82 will give the atomic number of the element belonging to the same group ;
Thus 106 - 82 = 24 ; The element Z = 24 is Chromium is a d-block element ;

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