Q27 of 181 Page 283

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

Two criteria used by Mendeleev were:

(i) Mendeleev arranged the elements in increasing order of their atomic masses.


(ii) He put elements having similar properties in same group.


More from this chapter

All 181 →
26

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

 27

Why do we classify elements ?

 27

Why did Mendeleev leave some gaps in his periodic table ?

 27

In Mendeleev’s periodic table, why was there no mention of noble gases like helium, neon and argon?