SSC
CHEMISTRY
Question
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CI
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chlorine g.17 p.5
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chlorine g.3 p.17
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chlorine g.17 p3
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None of the above
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Explanation:
Detailed explanation-1: -The neutral atom chlorine (Z=17), for instance has 17 electrons. Therefore, its ground state electronic configuration can be written as 1s22s22p63s23p5. The chloride ion (Cl-), on the other hand, has an additional electron for a total of 18 electrons.
Detailed explanation-2: -Chlorine has the electron configuration [Ne]3s23p5, with the seven electrons in the third and outermost shell acting as its valence electrons.
Detailed explanation-3: -The atomic number of chlorine atom = 17. So, its electronic configuration is. K L M. 2 8 7.
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