What were the limitations of Newlands’ Law of Octaves ?
What were the limitations of Newlands’ Law of Octaves ?
Limitations of Newlands’ law of octaves :
$(i)$ It was not applicable throughout the arrangements. It was applicable up to calcium only. The properties of the elements listed after calcium showed no resemblance to the properties of the elements above them.
$(ii)$ Those elements that were discovered after Newlands’ octaves did not follow the law of octaves.
$(iii)$ The position of cobalt and nickel in the group of the elements $(F,\, Cl)$ of different properties could not be explained.
$(iv)$ Placing of iron far away from cobalt and nickel, which have similar properties as iron, could also not be explained.
Similar Questions
How could the Modern Periodic Table remove various anomalies of Mendeléev’s Periodic Table ?
How could the Modern Periodic Table remove various anomalies of Mendeléev’s Periodic Table ?
What property do all elements in the same column of the Periodic Table as fluorine have in common?
What property do all elements in the same column of the Periodic Table as fluorine have in common?
In the Modern Periodic Table, calcium (atomic number $20$) is surrounded by elements with atomic numbers $12$, $19$, $21$ and $38$. Which of these have physical and chemical properties resembling calcium?
In the Modern Periodic Table, calcium (atomic number $20$) is surrounded by elements with atomic numbers $12$, $19$, $21$ and $38$. Which of these have physical and chemical properties resembling calcium?
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Lithium, sodium, potassium are all metals that react with water to liberate hydrogen gas. Is there any similarity in the atoms of these elements ?
The position of three elements $A$, $B$ and $C$ in the Periodic Table are shown below
Group $16$
Group $17$
-
-
-
$A$
-
-
$B$
$C$
$(a)$ Will $C$ be larger or smaller in size than $B$ ?
$(b) $ Which type of ion, cation or anion, will be formed by element $A$ ?
The position of three elements $A$, $B$ and $C$ in the Periodic Table are shown below
| Group $16$ | Group $17$ |
| - | - |
| - | $A$ |
| - | - |
| $B$ | $C$ |
$(a)$ Will $C$ be larger or smaller in size than $B$ ?
$(b) $ Which type of ion, cation or anion, will be formed by element $A$ ?