Advertisements
Advertisements
प्रश्न
Explain the octet rule for the formation of –
Sodium chloride from a sodium atom and a chlorine atom.
Advertisements
उत्तर
Formation of sodium chloride NaCl, Na atom has atomic number 11 [2, 8, 1], There is 1 electron in the outermost M shell it is not possible to gain 7 electrons and to lose 1 electron is easier, by losing sodium atom because of \[\ce{Na+}\] ion.
While Cl atomic number 17 [2, 8, 7] has 7 electrons in outermost M shell for Cl atom it is easier to gain 1 electron, becomes \[\ce{Cl-}\] ion.
By losing 1 electron and by gaining 1 electron both sodium and chlorine attain octet configuration and become stable and there is the electrostatic force that pulls them and becomes sodium chloride.
APPEARS IN
संबंधित प्रश्न
Na+ has completely filled K and L shells. Explain.
What is the Electronic Configuration of a Hydrogen Atom?
State the number of electrons present in the outermost shell of the atoms of the following elements :(i) Neon
(ii) Chlorine
Name the shell of an atom which can accommodate a maximum of :
(a) 2 electrons ?
(b) 18 electrons ?
What do you understand by the term "electronic configuration" of an element? Write down the electronic configuration of oxygen (At. No. = 8).
Write the distribution of electrons in an atom of element whose atomic number is 18. What is special about the outermost electron shell (or valence shell) of the atom of this element?
What is meant by the term orbits
Select the correct answer from the answer in the bracket to complete the sentence.
The maximum number of electrons in M-shell is _______.
Give a reason for the following:
The shells surrounding the nucleus of an atom are also called ‘energy levels’.
The correct electronic configuration of potassium is ______.
