Question

Which of the following does not represent dobereiners triad (question 2)

Answer 1

Answer:

Your answer is Option D ...N,P,As that is nitrogen , phosphorus and arsenic doesn't represent Doberieners triads.

Hope this helps you dear

Answer 2

Answer:

d

Explanation:

triad: A triad is a group of 3 elements where the sum and average of the atomic weight of 2 elements is equal to the atomic weight of the middle one

the atomic weight of Li is 6

the atomic weight of k is 38

• average = 38+ 6 ÷2
• = 22
• which is the atomic weight of Na

similarly, (b) and (c) also follows the traid

therefore(d) is not the triad