Class 10SciencePeriodic Classification of ElementsMix Examples - Periodic Classification of Elements
Medium$(a)$ What is the basis of arranging the elements in the Modern Periodic Table?
$(b)$ How does this remove the problem of positioning of isotopes?
$(b)$ How does this remove the problem of positioning of isotopes?
(N/A) The basis of arranging elements in the Modern Periodic Table is the increasing order of their atomic number $(Z)$. This approach allows for more precise predictions of elemental properties.
$(b)$ Isotopes are atoms of the same element that have the same atomic number $(Z)$ but different atomic masses. Since the Modern Periodic Table is organized based on increasing atomic numbers,all isotopes of a given element share the same position. Therefore,they are placed in the same group and the same period,effectively resolving the problem of their positioning.
$(b)$ Isotopes are atoms of the same element that have the same atomic number $(Z)$ but different atomic masses. Since the Modern Periodic Table is organized based on increasing atomic numbers,all isotopes of a given element share the same position. Therefore,they are placed in the same group and the same period,effectively resolving the problem of their positioning.
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Similar Questions
An element which is an essential constituent of all organic compounds belongs to
Easy
View Solution$(a)$ In this ladder (Figure),symbols of elements are jumbled up. Rearrange these symbols of elements in the increasing order of their atomic number in the Periodic Table.
$(b)$ Arrange them in the order of their group also.
$(b)$ Arrange them in the order of their group also.
Difficult
View SolutionFour elements $P, Q, R$ and $S$ have atomic numbers $12, 13, 14$ and $15$ respectively.
Answer the following questions giving reasons:
$(i)$ What is the valency of $Q$?
$(ii)$ Classify these elements as metals and non-metals.
$(iii)$ Which of these elements will form the most basic oxide?
Answer the following questions giving reasons:
$(i)$ What is the valency of $Q$?
$(ii)$ Classify these elements as metals and non-metals.
$(iii)$ Which of these elements will form the most basic oxide?
Medium
View SolutionGiven below are some elements of the modern periodic table. Atomic numbers of the elements are given in the parentheses: $A(4), B(9), C(14), D(19), E(20)$.
$(a)$ Select the element that has one electron in the outermost shell. Also,write the electronic configuration of this element.
$(b)$ Which two elements amongst these belong to the same group? Give reason for your answer.
$(c)$ Which two elements amongst these belong to the same period? Which one of the two has a bigger atomic radius?
$(a)$ Select the element that has one electron in the outermost shell. Also,write the electronic configuration of this element.
$(b)$ Which two elements amongst these belong to the same group? Give reason for your answer.
$(c)$ Which two elements amongst these belong to the same period? Which one of the two has a bigger atomic radius?
Medium
View SolutionWhich of the following gives the correct increasing order of the atomic radii of $O$,$F$ and $N$?
Medium
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