Tag: the periodic table
Questions Related to the periodic table
Atomic wt. of P is 31 and Sb is 120. What will be the atomic wt. of As, as per Dobernier triad rule?
Atomic wt. of $Cl = 35.5$ and of $I = 127$. According to Doeberiner triad rule atomic wt. of $Br$ will be:
If three elements X, Y, and Z form a Dobereiner's triad and atomic weights of X and Z are 9 and 40 respectively, then the atomic weight of the element Y is approximately:
Law of Triad was proposed by:
The element in between lithium and potassium in Dobereiner's classification is:
Chlorine, Y and Iodine form a Dobereiner's triad. Identify the atomic weight of Y.
Three elements X, Y and Z form a Dobereiner triad. The ratio of the atomic weight of X to that of Z is 7: 25.
When a Dobereiner triad is considered, the sum of atomic weights of extreme elements X and Z is 177.6 and difference of Z and Y is five times the number of protons present in a neon atom. Identify X, Y and Z.
Which of the following sets of atomic masses do not correspond to Dobernier traid?
Dobereiner was the first person to illustrate the relationship between the ____________ of elements and their properties.