Class 10SciencePeriodic Classification of ElementsMix Examples - Periodic Classification of Elements
EasyName any two pairs of elements which were adjusted by Newlands in the same slot.
(N/A) According to Newlands' Law of Octaves,certain elements were placed in the same slot to fit the periodic arrangement.
The two pairs of elements placed in the same slot are:
$(i)$ Cobalt $(Co)$ and Nickel $(Ni)$
$(ii)$ Cerium $(Ce)$ and Lanthanum $(La)$
The two pairs of elements placed in the same slot are:
$(i)$ Cobalt $(Co)$ and Nickel $(Ni)$
$(ii)$ Cerium $(Ce)$ and Lanthanum $(La)$
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Similar Questions
In Mendeleev's Periodic Table,the elements were arranged in the increasing order of their atomic masses. However,cobalt with an atomic mass of $58.93 \ amu$ was placed before nickel having an atomic mass of $58.71 \ amu$. Give the reason for the same.
Medium
View SolutionThe elements $A$,$B$,$C$,$D$,and $E$ have atomic numbers $9$,$11$,$17$,$12$,and $13$ respectively. Which pair of elements belongs to the same group?
Medium
View SolutionWhich of the following elements will form an acidic oxide?
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View SolutionIf an element $X$ is placed in group $14$,what will be the formula and the nature of bonding of its chloride?
Easy
View SolutionGive reasons for the following:
$(a)$ Lithium atom is smaller than Sodium atom.
$(b)$ Chlorine (Atomic Number $17$) is more electronegative than Sulphur (Atomic Number $16$).
$(a)$ Lithium atom is smaller than Sodium atom.
$(b)$ Chlorine (Atomic Number $17$) is more electronegative than Sulphur (Atomic Number $16$).
Medium
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