aaccording to mendeleevs periodic law, what is the basis of properties of elements? b)where did mendeleevs element with similar properties in this periodic table? c)write down any one merit and demerit of mendeleevs periodic table?
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⭐️⭐️⭐️⭐️ ANSWER ⭐️⭐️⭐️⭐️
● According to Mendeleev's Periodic law, the physical and chemical properties of elements are a periodic function of their atomic numbers.
● MERITS AND DE-MERITS OF MENDELEEV'S PERIODIC TABLE :
◆ MERITS :
1] Incorrect atomic mass is corrected.
2] He left gaps for undiscovered elements.
3] He generalised the study of the elements and make an efficient Grouping of elements.
◆DE-MERITS :
1] Isotopes were not assigned separate places.
2] He grouped chemically dissimilar elements in certain groups.
3] His periodic table failed to explain the electron arrangement of elements.
4] Hydrogen was not given a fixed position.
● According to Mendeleev's Periodic law, the physical and chemical properties of elements are a periodic function of their atomic numbers.
● MERITS AND DE-MERITS OF MENDELEEV'S PERIODIC TABLE :
◆ MERITS :
1] Incorrect atomic mass is corrected.
2] He left gaps for undiscovered elements.
3] He generalised the study of the elements and make an efficient Grouping of elements.
◆DE-MERITS :
1] Isotopes were not assigned separate places.
2] He grouped chemically dissimilar elements in certain groups.
3] His periodic table failed to explain the electron arrangement of elements.
4] Hydrogen was not given a fixed position.
shammas92:
Demerits?
B answer what
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