Identify the number of electrons found in the outermost shell of halogen. 

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SSC CPO 2024 Official Paper-I (Held On: 27 Jun, 2024 Shift 2)
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  1. Two 
  2. Seven 
  3. Five 
  4. One

Answer (Detailed Solution Below)

Option 2 : Seven 
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SSC CPO : General Intelligence & Reasoning Sectional Test 1
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Detailed Solution

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The correct answer is Seven

Key Points

  • Halogens have seven electrons in their outermost shell.
  • They are located in Group 17 of the periodic table.
  • Halogens include elements like fluorine, chlorine, bromine, iodine, and astatine.
  • These elements are highly reactive and are known for their ability to form salts when combined with metals.
  • The seven valence electrons make them one electron short of a full octet, which explains their high reactivity.
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