What conclusions do you think Dobereiner would have made if he had tried to compare F,Cl, & Br as a triad instead of Cl, Br, and I? Using the modern periodic table , explain why F,Cl, & Br would not have fit his scheme. Would he have found P, As, and Sb to be a triad? What about As, Sb, and Bi> Explain your answers
2006-12-07 12:35:14 · 1 answers · asked by cheez-it 1 in Science & Mathematics ➔ Chemistry
Dobereiner's triads were groups of three elements with similar properties. When he took the weights of the lightest and heaviest of these three elements they averaged to equal the weight of the middle element.
When you average the weights of F and Br you do not get the weight of Cl. Therefore he would not have thought they were related at all.
In order to fit in his triads they must meet both of his criteria: similar properties and !st & 3rd weights average to equal the middle weight.
2006-12-07 12:43:06 · answer #1 · answered by physandchemteach 7 · 0⤊ 0⤋