Home
Class 9
CHEMISTRY
Summarize the rule for writing of distri...

Summarize the rule for writing of distribution of electrons in various shell for the first eighteen elements.

Text Solution

Verified by Experts

The rules for writing of the distribution of electrons in various shells for the first eighteen elements are given below. If n given number of orbit or energy level, the `2n^(2)` gives the maximum number of electron possible in a given orbit or energy level. Thus, first orbit or K shell will have 2 electrons. Second orbit or L - shell will have 8 electrons. Third orbit or M Shell will have 18 electrons. If it is the outermost orbit then it should have not more than 8 electrons. There should be step - wise filling of electrons in different orbits i.e., electrons are not accompanied in a given orbit if the earlier orbits or shells are incompletely filled.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • STRUCTURE OF THE ATOM

    CPC CAMBRIDGE PUBLICATION|Exercise ADDITIONAL QUESTIONS (I. Choose the correct answer)|10 Videos

  • STRUCTURE OF THE ATOM

    CPC CAMBRIDGE PUBLICATION|Exercise ADDITIONAL QUESTIONS (II. Fill in the blanks)|5 Videos

  • STRUCTURE OF THE ATOM

    CPC CAMBRIDGE PUBLICATION|Exercise UNIT TEST (II. Answer the following)|3 Videos

  • MATTER IN OUR SURROUNDINGS

    CPC CAMBRIDGE PUBLICATION|Exercise UNIT TEST (Answer the following)|4 Videos

Similar Questions

Explore conceptually related problems

Write the distribution of electrons in carbon and sodium atoms.

Write down the electronic configuration of the first three elements of group I

Knowledge Check

  • The number of electrons in the outermost shell in the atom of an inert element is

    A
    0
    B
    1
    C
    2
    D
    8

    • Similar Questions

    Explore conceptually related problems

    Write the electronic configuration of the element with Z=17

    An element Y has three shells with four electrons in the valence shell. Another element X has twice as many electrons in its second shell as in its first shell. i] Identify the elements X and Y. ii] Is there any similarity between the element Y and X? If so, what?

    Name three elements that have a single electron in their outermost shells.

    Write the general electronic configuration of transition elements.

    Which elements has Twice as many electrons in its second shell as in its first shell ?

    Name: a) three elements that have a single electron in their outermost shells b) two elements that have two electrons in their outermost shells . c) three elements with filled outermost shells

    Which elements have a) two shells, both of which are completely filled with electrons? b) the electronic configuration 2, 8,2? c) a total of there shells, with four electrons in its valance shells? d) a total of two shells, with three electrons in its valence shells?

    Home
    Profile