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What is dobereins trade

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What is dobereins trade

Posted by Have Fun Happy 5 years, 2 months ago

CBSE > Class 10 > Science

2 answers

Purvanshi Yadav 5 years, 2 months ago

Dobereins arrange elements in the order of increasing atomic masses. He identified some groups having 3 elements each. He called these groups triads. For eg- Li, Na, K When elements were arrange in order of incresing atomic masses then the atomic mass of middle element was roughly the averge atomic masses of other 2 elements.

Rahul Prajapati 5 years, 2 months ago

When elements are arranged in the order of increasing atomic masses, groups of the three elements (known as traids), having similar chemical properties are obtained .The atomic mass of the middle element of a traid being equal to the arithmetic mean of the atomic masses of the other two elements.

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