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They are very reactive.
They can react violently or explosively with water, usually catching fire soon after contact. They react with moisture and air to produce strong bases that can cause serious chemical burns.
The two most reactive of the metals, rubidium and cesium, burst into flames on contact with air.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoAlkali metals only have one electron in their outermost (or valence) shell. This means that that electron is not as likely to be located near the nucleus and could react because of less attraction to the positive nucleus. Noble gases (the elements in the column all the way to the right in a Periodic Table) have 8 electrons in their outermost shell and have a greater attraction to the positive nucleus.
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Why are the alkali metals explosive in water?
Because the positive ions mix together to make them unstable
What reacts vigorously with water?
Among many, Sodium. Potassium, even more so.
Which elements are unstable when combined with water?
The Alkali metals (namely, Lithium, sodium, Potassium, Rubidium, Caesium and Francium in that order).
What is an example of an alkali metal that does NOT exist independently in nature or in the laboratory?
All alkali metals exist in the nature only as compounds.But I suppose that you think to francium, an unstable and radioactive chemical element.
Can Hydrogen make bond with alkali metals?
No, hydrogen is a nonmetal. It is grouped with the alkali metals because it has a similar outer shell electron configuration as they do. Hydrogen is something of an oddball among elements. It is rather unique, but share some characteristics with both the halogens and the alkali metals. When the periodic table is divided into groups (noble gasses, halogens, alkali metals, etc.) hydrogen is usually put in its own group.
Why are alkali metals reactive in water?
Because the positive ions mix together to make them unstable
Why are the alkali metals explosive in water?
Because the positive ions mix together to make them unstable
What reacts vigorously with water?
Among many, Sodium. Potassium, even more so.
Are the most stable elements you the periodic table are found in the family of alkali metals?
The most stable elements are found in the Noble Gases, in group 8 or group 0. The most UNstable elements are found in the alkali metals.
Which elements are unstable when combined with water?
The Alkali metals (namely, Lithium, sodium, Potassium, Rubidium, Caesium and Francium in that order).
The Family of what is the most reactive group of metals in the periodic table?
The Alkali metals are the most reactive group of metals in the periodic table. Of these Francium is the most reactive metal of all.
Which group do alkali metals bond with?
Alkali metals are electropositive so they want to react with halogens which are more electronegative.
What is an example of an alkali metal that does NOT exist independently in nature or in the laboratory?
All alkali metals exist in the nature only as compounds.But I suppose that you think to francium, an unstable and radioactive chemical element.
Which carbonates do not produce CO2 and why?
The carbonates of alkali metals (Ist group) do not evolve CO2 on heating because their oxides are highly unstable.
Can Hydrogen make bond with alkali metals?
No, hydrogen is a nonmetal. It is grouped with the alkali metals because it has a similar outer shell electron configuration as they do. Hydrogen is something of an oddball among elements. It is rather unique, but share some characteristics with both the halogens and the alkali metals. When the periodic table is divided into groups (noble gasses, halogens, alkali metals, etc.) hydrogen is usually put in its own group.
What metals is least stable aluminum silver iron potassium?
Potassium is very unstable as it is part of the alkali metals part of the periodic table, it will react to water, by blowing up.
Which properties of alkali metals unusual metals?
Alkali metal forms Alkali while metals form bases.
