Question

Answer the following questions. i) What is the honourable element of Mendeleeff ? ii) iii) iv) Mendeleeff triad to explain the similarities of elements in the same group in terms of which property ? The densities of Ca, Ba are 1.55 and 3.51 g cm–3 respectively. Based on Dobereiner’s law of traids can you give the approximate density of strontium (Sr). Why Mendeleeff had to leave certain blank space in his periodic table. What is your explanation for this ?​

Answer 1

Answer:

1.Mendeleev had predicted an atomic mass of 44 for ekaboron in 1871, while scandium has an atomic mass of 44.955908. In 1871, Mendeleev predicted the existence of a yet-undiscovered element he named eka-aluminium (because of its proximity to aluminium in the periodic table).

Answer 2

Explanation:

Aloha !

1) mendeleeivum

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