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What is characteristic about the outer electron shells of alkali metals?
Wiki User
∙ 14y ago
since all the alkali metals have one electron in there outer most shell so there valency is always one & they are the most electropositive elements in the Periodic Table.they loose one electron from there outermost shell to form one positive charged cations.
Wiki User
∙ 14y ago
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What do alkali metals have in common with electron shells?
They all have 0NE electron in their outer shell: called s-electron. That's why they belong to group 1
What alkali metal requires 4 electron shells?
potasium
What is characteristic about the outer electron shells of the halogens?
The outer electron shells of the halogens contain seven electrons, and need one more electron to have eight and become stable.
What are the families that can lose electrons only from the last shell?
With that wording, the answer would be all of them. If you meant the families that can only lose one electron from their shells, that would be the alkali metals (The left-most column).
What are two elements with one electron in their outer shells?
Two elements with one electron in their outer shells are lithium (Li) and sodium (Na). Both elements belong to the alkali metal group of the periodic table.
What do alkali metals have in common with electron shells?
They all have 0NE electron in their outer shell: called s-electron. That's why they belong to group 1
Why alkali metals are more reactive than alkaline earth metals?
All atoms want to do is make their valence shell full. In alkali metals they have all of their shells completely full except one valence electron. The alkali metals REALLY want to get rid of that electron, so they will react with many elements/compounds to get rid of that electron. In alkaline earth metals they have all of their shells completely full except for two valence electrons. They also want to get rid of those electrons but the alkaline earth metals are not as desperate to do so as the alkali earth metals which make the alkaline much less reactive than the alkali metals.
Why are alkali metals more reactive than alkaline earth metal?
All atoms want to do is make their valence shell full. In alkali metals they have all of their shells completely full except one valence electron. The alkali metals REALLY want to get rid of that electron, so they will react with many elements/compounds to get rid of that electron. In alkaline earth metals they have all of their shells completely full except for two valence electrons. They also want to get rid of those electrons but the alkaline earth metals are not as desperate to do so as the alkali earth metals which make the alkaline much less reactive than the alkali metals.
How does the arrangement of alkali earth metals make them very reactive?
Alkalis have one electron in their valency shells. They can "lose" this electron easily, forming a cation which is strongly reactive.
What alkali metal requires 4 electron shells?
potasium
Why are alkali metals extremely reactive?
There is only one electron in the outer most electron shell. With the lighter (less massive) alkali metals, there are less electron shells, between the outer most electron and the nucleus. Since the nucleus is positive(Protons) it more strongly holds the outer most electron. However, when going down the Alkali (Group 1) metals there are more electron shells, so the outer most electron is further away from the nucleus, and thereby less strongly held. This is evidenced by Lithium (The least massive) which only slowly effervesces in water. At the bottom of the group Francium ( The most massive) is explosive in water. NB Francium is not used in the open laboratory because it is also radio-active.
Do all alkaline metals have 2 electron shells?
No. All the alkaline earth metals have 2 valence electrons, meaning they have two electrons in the outermost shells. No two alkaline earth metals have the same number of electron shells. Beryllium is the only one with two shells.
Why are alkali metals active?
because they have outer electrons than can merge with other elements. all elements want to have full outer electron shells, and they only have a few outer electrons.
Are alkali metals active?
because they have outer electrons than can merge with other elements. all elements want to have full outer electron shells, and they only have a few outer electrons.
What is characteristic about the outer electron shells of the halogens?
The outer electron shells of the halogens contain seven electrons, and need one more electron to have eight and become stable.
What are the elements called in the first group of the periodic table that have one outer shell electron and is extremely reactive?
The elements in the first group of the period table which have one electron in their outer shells and react extremely well are also known as the alkali metals. These elements are Hydrogen, Lithium, Sodium, Potassium, Rubidium, Cesium, and Francium.
What are the families that can lose electrons only from the last shell?
With that wording, the answer would be all of them. If you meant the families that can only lose one electron from their shells, that would be the alkali metals (The left-most column).
