Question

State the law on which classification of elements was based by arranging elements into groups of three called 'triads'

Answer 1

• The law of triads states that the arithmetic mean of the atomic masses of the first and third elements in a trial would be approximately equal to the atomic mass of the second element in that triad.
• For example, Lithium is the first metal, sodium is the middle, and potassium is the third element of the triad.
• The appearance and reaction in the triad of the elements were similar to each other.
• Hence the arrangement is called triads