Only 9 elements were set in the form of triads rest were not following the property of triads. Explanation: Döbereiner showed that when the three elements in a triad were written in the order of increasing atomic masses; the atomic mass of the middle element was roughly the average of the atomic masRead more
Only 9 elements were set in the form of triads rest were not following the property of triads.
Explanation:
Döbereiner showed that when the three elements in a triad were written in the order of increasing atomic masses; the atomic mass of the middle element was roughly the average of the atomic masses of the other two elements.
For example, take the triad consisting of lithium (Li), sodium (Na) and potassium (K) with the respective atomic masses 6.9, 23.0 and 39.0.
Döbereiner could identify only three triads from the elements known at that time. Hence, this system of classification into triads was not found to be useful.
What were the limitations of Döbereiner’s classification?
Only 9 elements were set in the form of triads rest were not following the property of triads. Explanation: Döbereiner showed that when the three elements in a triad were written in the order of increasing atomic masses; the atomic mass of the middle element was roughly the average of the atomic masRead more
Only 9 elements were set in the form of triads rest were not following the property of triads.
Explanation:
Döbereiner showed that when the three elements in a triad were written in the order of increasing atomic masses; the atomic mass of the middle element was roughly the average of the atomic masses of the other two elements.
For example, take the triad consisting of lithium (Li), sodium (Na) and potassium (K) with the respective atomic masses 6.9, 23.0 and 39.0.
Döbereiner could identify only three triads from the elements known at that time. Hence, this system of classification into triads was not found to be useful.
N: 14.0 Ca: 40.1 Cl: 35. 5
See lessP: 31.0 Sr: 87.6 Br: 79.9
As: 74.9 Ba: 137.3 I: 126.9
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Tiwari Academy is best in facilities.
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