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What alkali metal has an atomic radius of 238 pm?
The alkali metal with an atomic radius of 238 pm is potassium (K). Its large atomic radius is due to the added electron shells compared to other alkali metals in the same period.
What do forces have to do with atomic radius of alkali metals?
Forces have an indirect impact on the atomic radius of alkali metals. As you move down a group of alkali metals in the periodic table, the atomic radius typically increases due to increased electron shells. The forces between the electrons and nucleus (electrostatic forces) contribute to the overall size of the atom in terms of atomic radius.
How does the strength of the reaction with water vary as you move down the group of alkali metals?
as you go down there are more electrons on the outer shells which makes them more reactive when in contact with water
What is characteristic about the outer electron shells of alkali metals?
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.
What alkali metal requires 4 electron shells?
Cesium (Cs) is the alkali metal that requires 4 electron shells as it has the electron configuration [Xe] 6s1.
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.
What alkali metal has an atomic radius of 238 pm?
The alkali metal with an atomic radius of 238 pm is potassium (K). Its large atomic radius is due to the added electron shells compared to other alkali metals in the same period.
What do forces have to do with atomic radius of alkali metals?
Forces have an indirect impact on the atomic radius of alkali metals. As you move down a group of alkali metals in the periodic table, the atomic radius typically increases due to increased electron shells. The forces between the electrons and nucleus (electrostatic forces) contribute to the overall size of the atom in terms of atomic radius.
Is the alkali metal more reactive than an alkaline-earth metal?
Yes, alkali metals are more reactive than alkaline-earth metals. All atoms want to have 8 electrons in their outer shells. Alkali metals have to give one electron away, where as alkaline-earth metals need to give two away which is less energetically favorable.
How do transition metals compare to the reactivity of the alkalia or alkaline earth metals and why?
Transition metals generally have less reactivity than alkali or alkaline earth metals. This is because transition metals have more filled electron shells which provide greater stability, making it harder for them to lose or gain electrons compared to alkali or alkaline earth metals. Transition metals typically form compounds by sharing electrons or by forming complex ions, unlike alkali or alkaline earth metals that readily form simple ionic compounds by losing electrons.
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.
Group 1a elements have how many electrons in their valence shells?
All these have one electron in their valence shell.
How does the strength of the reaction with water vary as you move down the group of alkali metals?
as you go down there are more electrons on the outer shells which makes them more reactive when in contact with water
What is characteristic about the outer electron shells of alkali metals?
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.
What alkali metal requires 4 electron shells?
Cesium (Cs) is the alkali metal that requires 4 electron shells as it has the electron configuration [Xe] 6s1.
What group on the periodic table is the most reactive metals?
The Group 1 alkali metals are the most reactive from the periodic table. They are the most reactive, because they have only 1 valance (outer shell) electron. Reactivity increases as you go down in the group because as there are more shells as you move down, the proton/nucleus cluster in the centre exert a lesser force of gravity on the more distant valance electron, which causes it to be lost even more easily.
