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Which of the following groups have seven valence electrons and are very reactive? Column 1 alkali metals Column 2 alkaline earth metals Column 17 halogens Column 18 noble gases
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1 vote
1 vote
Which of the following groups have seven valence electrons and are very reactive?

Column 1 alkali metals
Column 2 alkaline earth metals
Column 17 halogens
Column 18 noble gases

User ISparkes
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2.6k points

1 Answer

15 votes
15 votes

Answer:

Halogen .Group 17

Explanation:-

  • These are p block elements
  • The elements are F,Cl,Br,I,At
  • The common EC is


\\ \rm\longmapsto ns^(1-2)np^(5)

User Michael J
by
2.8k points
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