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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asked Nov 6, 2022 233k views

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

Physics
high-school

Pacerier asked

by Pacerier

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1 Answer

3 votes

Answer:

Halogen .Group 17

Explanation:-

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

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

Serup answered Nov 13, 2022

by Serup

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