Can the following groups of elements be classified as Dobereiner's triad ? (a) Na, Si, Cl (b) Be, Mg, Ca Atomic mass of Be 9; Na 23; Mg 24; Si 28; Cl 35; Ca 40 Explain by giving reason.

ScienceClass 10CBSEAnswered 27 Mar 2026

Answer

Soln:

Though atomic mass of Silicon is the average of atomic masses of Sodium and Chlorine they do not have similar properties hence they cannot be classified as Dobereiner's triad

Science · Class 10

ScienceClass 10Explain Flavr Savr tomato
ScienceClass 10We breathe with the help of our ________.
ScienceClass 10What is hybridization? What are its types, with an example?
ScienceClass 10Lactobacillus benefits
ScienceClass 10Are all bacteria harmful?
ScienceClass 10Is it a type of bacteria?

Can the following groups of elements be classified as Dobereiner's triad ? (a) Na, Si, Cl (b) Be, Mg, Ca Atomic mass of Be 9; Na 23; Mg 24; Si 28; Cl 35; Ca 40 Explain by giving reason.

Suggested Q&A