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The family of elements having seven electrons in the outermost shell is ______.
  • a)
    Halogens
  • b)
    Alkaline earth metals
  • c)
    Alkali metals
  • d)
    Noble gases
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The family of elements having seven electrons in the outermost shell i...
The halogens are located on the left of the noble gases on the periodic table. These five toxic, non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). Although astatine is radioactive and only has short-lived isotopes, it behaves similar to iodine and is often included in the halogen group. Because the halogen elements have seven valence electrons, they only require one additional electron to form a full octet. This characteristic makes them more reactive than other non-metal groups.
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The family of elements having seven electrons in the outermost shell is ______.a)Halogensb)Alkaline earth metalsc)Alkali metalsd)Noble gasesCorrect answer is option 'A'. Can you explain this answer?
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