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Byju's Answer
Standard XII
Chemistry
Group Displacement Law
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Question
Write the properties of electrons.
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Solution
Electrons are the fundamental subatomic particles.
Electrons revolve around the nucleus in the fixed orbits.
Electron can be represented as e or e
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An electron has a definite mass and it carries a definite electric charge.
The mass of an electron has been found to be 1/1840 of mass of hydrogen, so it is treated as negligible.
An electron carries one unit of negative charge whose magnitude is equal to 1.602 x 10
-19
Coulombs.
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Q.
(a) Give the electronic configurations of sodium and chlorine.
(b) Write the electron-dot structures for sodium and chlorine atoms.
(c) Describe the formation of sodium chloride from sodium and chlorine by the transfer of electrons. What changes take place in the electronic configurations of sodium and chlorine during the formation of sodium chloride?
(d) Write any two properties of ionic compounds.