ICSE Class 10 Answered
why carbon has vaency 4 and chrine 1
Asked by trishlaparihar20th | 27 Mar, 2015, 07:46: PM
Expert Answer
Valency is the combining capacity of an atom.
The atomic number of carbon is 6. Its electronic configuration is (2, 4). It has 4 electrons in its outermost shell (valence shell). Carbon will either gain or lose these 4 electrons to complete its octet. Thus, the valency of carbon is 4.
Similarly, atomic number of chlorine is 17. Its electronic configuration is (2, 8, 7). Thus, chlorine will gain 1 electron to complete its octet. Therefore, the valency of chlorine is 1.
Answered by Hanisha Vyas | 28 Mar, 2015, 02:45: PM
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