Question

Given that X, Y, Z are triads. Atomic masses of X and Z are 32,125 respectively. Then what is the atomic mass of Y is? *




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Answer 1

Answer:

As per Dobereiner's triads, when elements are arranged in the order of increasing atomic masses, a group of three elements, having similar chemical properties are obtained. The atomic mass of the middle element of the triad being equal to the arithmetic mean of the atomic masses of the other two elements. Thus,

 

2

atomicmassofX+atomicmassofZ

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=atomicmassofY

2

7+Z

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=23

7+Z=46

Z=46−7=39

mass of Z=39

Explanation:

Answer 2

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