Question

According to Dobereiner,________?

• A. the sum of atomic masses of the first and the third elements of the triad is equal to that of the second element
• B. the sum of atomic masses of the first and the second elements of the triad is equal to that of the third element
• C. the arithmetical mean of the atomic masses of the first and the third elements of the triad is equal to that of the second one
• D. the arithmetical mean of the atomic masses of the second and the third elements of the triad is equal to that of the first

Answer 1

Answer:

C. the arithmetical mean of the atomic masses of the first and the third elements of the triad is equal to that of the second one

The arithmetic mean of the atomic masses of the first and the third elements of the triad is equal to that of the second one