Medeleeff corrected the atomic weight of :

Mendeleff corrected the atomic weight of

How many of the following statements are correct according to Mendeleef's period table ? (a) Mendeleef corrected the atomic weight of Be, In and Os b) Ar-k, Te-I and Co-Ni are anomalous pairs. c) Atomic weights of elements were corrected by using the relation Atomic Wt. (Eq.Wt) (valency) d) Eka baron is scandium e) Eka silicon is germanium f) Eka aluminium is galium g)This classification is based on valency h) Mendeleef's law is based on atomic weights

Define atomic weight.

What is atomic weight ?

Define Atomic weight.

Which of the following is the correct squence of atomic weights of given elements?

Which of the following is the correct squence of atomic weights of given elements?

The percentage by weight of chromium in green coloured chromium oxide (chromic oxide) is 68.43 and it is isomorphous with ferrix oxide. Estimate the correct atomic weight of chromium.