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Why do the elements in the group 1 and 2 react with group 17?


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Answered 2012-11-12 14:25:12

The group 1 and 2 elements have much lower electronegativity value than group 17 elements and therefore lose electrons to the group 17 elements. The group 17 elements require only one more electron to have a full valence shell and thereby acquire the stable electron configuration of the next higher atomic number noble gas. The group 1 and 2 elements achieve a stable electron configuration when they lose all their outermost (valence) electrons and thereby acquire the electron configuration of the next lower atomic number noble gas. One group 1 element will combine with one group 17 element and one group 2 element will combine with two group 17 elements. Examples include NaF, and MgCl2.

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The halogens, group 17, react violently with Group 1 in the periodic table.


Group 1 and group 7 elements doesn't react together.




Group 1 and group 17 elements


Group 17 elements are acceptors of electrons and group 1 elements ar donor of electrons.


The alkali metals in group 1 react by losing one electron.


Group 1 have one valence electron. The elements in Group 2 have two. The elements in Group 17 have seven valence electrons, and Group 18 elements have eight. Because the valence electrons within a family are the same, the elements in that group have similar properties.


Alkali metals (Group 1) donate one electron (per atom) to one atom of Halogens (Group 17)


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Group 1 and group 2 elements are reactive metals and react readily with water. They also react readily at high temperatures with oxygen. Over the millenia any free deposits would react to form compounds.


Did you mean group 7 or 17? Well if a group 1 and 7 element reacts it is called a Metal-Metal bond , which can be broken down into three subgroups: covalent, dative, and symmetry. If you ment Group 1 and 17 then it is an Ionic bond.


Group 1 or 2 elements with group 16 or 17 elements.


Group 17 or halogens will combine readily with group 1 elements.



group 1 or group 2 elements with group 17 or group 16 elements


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Francium is considered the most reactive of the group 1 elements. This is because it is the largest of all elements in group 1, therefore takes the least amount of energy to lose an electron (Group 1 elements react by losing electrons.)


Usually salts, from the metallic elements in group 1. However, note that hydrogen is also in group 1 and can not form salts, although it forms many other kinds of compounds.


Group 1 and 17. The most reactive elements are fluorine and francium.


Group 1 elements are known as alkali metals because they react with water to form alkali (or bases).


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Elements in Group 1 of the Periodic Table (Alkali Metals) are reactive in Oxygen and extremely reactive in Water. Oxygen will also react with most elements.


group 1 elements have to 'lose' one electron to fill their outermost shell of electrons group 7 elements have to 'gain' one electron to complete their outermost shell of electrons


halogens or group 17 elements