NCERT Solutions Class 10 Science Chapter 5
NCERT Solutions Class 10 Science Chapter 5 Chapter 5 – Periodic Classification of Elements 1. Did Döbereiner’s triads also exist in the columns of Newlands’ Octaves? Compare and find out. Solution: Döbereiner’s triads did exist in the columns of Newlands’ Octaves; For example, the elements Lithium (Li), Potassium (K) and Sodium (Na) constitute a Dobereiner’s … Read more