Which one of the following is the correct electronic configuration of chlorine?

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Q: 91 (NDA-I/2014)

Which one of the following is the correct electronic configuration of chlorine?

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,7,8,6,7,2,0

keywords: 

{'correct electronic configuration': [0, 0, 0, 1], 'chlorine': [8, 2, 8, 9]}

Option-1: 2, 7, 8: This electronic configuration indicates that there are 2 electrons in the first energy level, 7 electrons in the second energy level, and 8 electrons in the third energy level. However, chlorine has 17 electrons in total, so this configuration is incorrect.

Option-2: 2, 8, 7: This electronic configuration accurately represents the electron distribution in chlorine. Chlorine has 2 electrons in the first energy level, 8 electrons in the second energy level, and 7 electrons in the third energy level. This configuration correctly reflects the atomic structure of chlorine.

Option-3: 2, 8, 8: This configuration suggests that chlorine has 2 electrons in the first energy level, 8 electrons in both the second and third energy levels. However, chlorine actually has 7 electrons in its third energy level, so this configuration is incorrect.

Option-4: 7, 8, 2: This electronic configuration suggests that chlorine has 7 electrons in the first energy level, 8 electrons in the second energy level, and 2 electrons in the third energy level. However, the correct configuration for chlorine is 2, 8, 7, so this

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