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    write the electronic configuration of any one pair of isotopes and isobars.

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    Question

    Write the electronic configuration of any one pair of isotopes and isobars.

    Medium Open in App Solution Verified by Toppr Isotopes:

    Isotopes are atoms of the same element having the same atomic number but different atomic masses.

    The difference in the masses of isotopes of an element is due to the different number of neutrons in the nucleus.

    Since all the isotopes of an element have identical electronic configuration containing the same number of Valence Electrons, therefore, all the isotopes of an element show identical chemical properties.

    Isobars:

    Atoms of different elements with the atomic number for the same mass number are called isobars.

    Isobars have different chemical properties because they have different atomic numbers & their electronic configuration is different.

    Two isotopes of carbon are :

    12 C 6 ​ & 14 C 6 ​

    Electronic configuration are:

    12 C 6 ​ =2,4 14 C 6 ​ =2,4

    Two isobars of calcium and Argon are:

    40 Ca 20 ​ & 40 Ar 18 ​

    Electronic configuration are:

    40 Ca 20 ​ =2,8,8,2 40 Ar 28 ​ =2,8,8

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    Write the electronic configuration of any one pair of isotopes and iso

    Write the electronic configuration of any one pair of isotopes and isobars.AnswerIsotopesare elements having the same atomic number but different mass numbers.Example,andMass number = 35                                                 Mass number = 37Atomic number = 17

    Question 2 Page 53 - Chapter 4 Class 9 - Structure Of The Atom (Term 2)

    Last updated at June 29, 2021 by

    Write the electronic configuration of any one pair of isotopes and isobars.

    Answer Isotopes are elements having the same atomic number but different mass numbers.

    Example, and

    Mass number = 35                                                 Mass number = 37

    Atomic number = 17                                               Atomic number = 17

    Number of electrons = atomic number = 17          Number of electrons = atomic number = 17

    Electronic configuration - 2, 8, 7                             Electronic configuration - 2, 8, 7

    K Shell - 2 electrons                                             K Shell - 2 electrons L Shell - 8 electrons                                              L Shell - 8 electrons                                                           M Shell - 7 electrons                                              M Shell - 7 electrons  Since isotopes have the same atomic number, their electronic configuration is the same. Isobars are elements having different atomic numbers but same mass numbers.

    For example: and

    Mass number = 40                                                 Mass number = 40

    Atomic number = 20                                              Atomic number = 18

    Number of electrons = atomic number = 20          Number of electrons = atomic number = 18

    Electronic configuration - 2, 8, 8, 2                      Electronic configuration - 2, 8, 8

    K Shell - 2 electrons                                            K Shell - 2 electrons L Shell - 8 electrons                                             L Shell - 8 electrons                                                           M Shell - 8 electrons                                            M Shell - 8 electrons N Shell - 2 electrons Since isobars have different atomic numbers, their electronic configuration is different.

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    Write The Electronic Configuration Of Any One

    Get detailed answer of write the electronic configuration of any one pair of isotopes and isobar.

    Write the electronic configuration of any one pair of isotopes and isobar.

    Answer :

    (a) Isotopes: Isotopes are atoms which have the same number of protons but different number of neutrons. They have same atomic number but different mass number.

    Example: Carbon molecule exists as 6C12 and 6C14 but when their electronic configuration is K-2; L-4

    (b) Isobars: Isobars are atoms which have the same mass number but different atomic number.

    Example: Electronic configuration of 20Ca40is – K-2; L-8; M-8; N- 2 and of 18Ar40 is – K-2; L-8; M-8

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