Question

mass of a + mass of b = mass of c + mass of d which property is it​

Answer 1

Answer:

(a) The average atomic mass of elements A and C = 2

7+39 = 2

46 =23

(b) The average atomic mass of elements A and C is the same as the atomic mass of element B=23.

(c) The element A is Lithium (Li), B is Sodium (Na) and C is Potassium (K). They are Dobereiner's Triads because in Dobereiner's Triads the atomic mass of the middle element is approximately the mean of the atomic masses of other two elements.

Explanation:

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