Q5 of 40 Page 5

State two reasons for rejecting law of octaves.

(i) The law did not extend properly beyond the element calcium.
(ii) The law did not provide any specific place for hydrogen.

More from this chapter

All 40 →
3 What is achievement of Dobereiner's law of traids? 4 Lithium, Sodium and potassium were put in the same group on the basis of their similar properties.
i) What is the similarity in their properties? 6 Name four alkaline earth metals. To which group do they belong? 7 What is called diagonal relationship?