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प्रश्न
Explain the octet rule for the formation of –
Sodium chloride from a sodium atom and a chlorine atom.
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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.
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संबंधित प्रश्न
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 ?
From the Symbol `""_15^31"P"`, State : Electron Configuration of Phosphorus.
Give scientific reason.
Atoms are stable though negatively charged electron is revolving within it.
Explain the arrangement and distribution of electrons in the various shells with reference to an atom in general and to an atom of potassium ‘3919K’ with special reference to the 2n2 rule.
Differentiate between the term Stable and unstable electronic configuration.
The following element is given \[\ce{_14X}\]. State the electronic configuration and state whether it is a metal, non-metal, or inert gas.
Explain the octet rule for the formation of –
Nitrogen molecule from two nitrogen atoms.
Give a reason for the following:
The shells surrounding the nucleus of an atom are also called ‘energy levels’.
How will you define the term ‘electronic configuration’?
