Q27 of 181 Page 283

Why do we classify elements ?

We classify elements into groups or periods in such a way that the elements of the same group possess similar properties and this makes the study of large number of elements reduced to the study of few elements.


More from this chapter

All 181 →
26

How do the properties of eka- aluminium element predicted by Mendeleev compare with the actual properties of gallium element ? Explain your answer.

 26

What names were given by Mendeleev to the then undiscovered elements(i) scandium (ii) gallium, and (iii) germanium ?

 27

What were the two criteria used by Mendeleev to classify the elements in his periodic table ?

 27

Why did Mendeleev leave some gaps in his periodic table ?