Question
Explain the formation of covalent bond in $Cl_2$ molecule.
✓
Answer
Formation of $Cl_2$ molecule:
$i.$ The electronic configuration of $Cl$ atom is $[Ne] 3s^2 3p^5.$
$ii.$ It needs one more electron to complete its valence shell.
$iii.$ When two chlorine atoms approach each other at a certain internuclear distance, they share their valence electrons. In the process, both the atoms attain the valence shell of octet of nearest noble gas, argon.
$iv.$ The shared pair of electrons belongs equally to both the chlorine atoms. The two atoms are said to be linked by a single covalent bond and a $Cl_2$ molecule is formed.
$i.$ The electronic configuration of $Cl$ atom is $[Ne] 3s^2 3p^5.$
$ii.$ It needs one more electron to complete its valence shell.
$iii.$ When two chlorine atoms approach each other at a certain internuclear distance, they share their valence electrons. In the process, both the atoms attain the valence shell of octet of nearest noble gas, argon.
$iv.$ The shared pair of electrons belongs equally to both the chlorine atoms. The two atoms are said to be linked by a single covalent bond and a $Cl_2$ molecule is formed.
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