Question

Define Dobereiner's triads! and New land's law of octaves​

Answer 1

Answer:

Dobereiner triads: He make a group of three elements in such a way that the average of atomic masses of 1st and 3rd elements is equal to the atomic mass of the middle one such as Li Na and K.

Newlands law of Octaves: When elements were arranged in such a way that the physical and chemical properties of each eighth element were resembling.

Answer 2

Answer:

Dobereiner traid :- when the elements are arranged in order of increasing atomic masses group of three elements (known as traids) having similar properties are obtained. The atomic mass of the middle element of the trade was roughly the average of the atomic masses of the other two elements.

Newlands law of octaves :- Newland arrange the then known elements in the order of increasing atomic masses informed that properties of every 8 element is similar to the first element. He compared this to the octave from the music and called it law of octave...

May this will help uhh❤️