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group 1 metals have only one electron in the outermost shell.it gives out electrons easily as it is highly electropositive and called as highly reactive metals..water has the polarity..due to this property the OH ions in water becomes slightly electro-negative and attracts the electro positive metal thus forming hydroxides..and also due to this reaction hydrogen gas is formed along with the formation of hydroxides..
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∙ 14y ago
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∙ 10y agoRubidium and Caesium floats on water because water has a density of 1g/cm3, if an object has a density greater than this then its going to sink. Both the elements is greater than 1g/cm3 (if your wondering what the 3 is after the cm, its just cube)
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∙ 11y agoJust about anything! The group 1 elements, which include common alkali metals sodium and potassium, along with hydrogen, are very reactive. This is because they only have 1 valence electron, and it's pretty easy to just lose one valence electron. This means they react with a lot of different other elements, mostly non-metals that aren't noble gases.
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∙ 10y agoYou mean, float in water? None of them. Absolutely none. Put any of the Group 1 elements in water, and they will react with it very violently.
The reaction proceeds as follows, and we'll call the Group 1 element E because there are six of them...
E + 2H2O -> 2EOH + H2
All these reactions are exothermic; they will produce enough heat to ignite the hydrogen, leaving you with a big fireball and an aqueous alkali solution all over the inside of your fume hood. So don't do this.
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∙ 12y agoLithium midly but fairly vigorously.
Sodium very vigorously.
Potassium usually cathes on fire..
Rubidium, Cesium and Francium explosively
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∙ 12y agoType your answer here... oxides of group 1react with water to form alkaline hydroxides. they turn red litmus blue. by bolt's fan
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∙ 14y agoBecause they have very low ionization potential and are unstable in neutral form so to stabilized themselves they react with water it form +1 ions.
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∙ 12y agoLithium (Li).
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∙ 11y agoNout
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If an element has 1 valence electron what group is it in?
That element would be in the Alkali Metals (group one)
Why is there a sudden jump in the atomic radius in elements in group 18 and the next higher element in the next period in group 1?
When the element moves from group 18 to group 1, it moves to a new period. Each period has a one more electron shell than the previous. The group 1 element has one more electron shell than the group 18 element; hence, it's atomic radius is greater.
What element is in group 1 period 3?
Sodium (Na), element number 11.
What things are alkoli?
An element in group 1 of the periodic table.
What element group gains or shares 1 electrons?
Elements in group 7A can only gain or share 1 electron.
Why does an object float in water?
molecules make an object float the airs density has gases that react to substance and then change phase an element has only 1 kind of atom and that atom gets
Will atomic number 43 sink or float in water?
For something to be able to float on water, it requires a density lower than water. Water at room temperature has a density of 1 kg / L or 1000 g / dm3Atomic number 43 is the element Technetium. At room temperature Tc has a density of 11 g / dm3.So yes, it will float on water.
How do you ensure the reaction between group 1 element with water is stoped?
The reaction is stopped when no hydrogen is released.
What is the identity element of the quaternion group?
If you mean in the group {1, -1, i, -i, j, -j, k, -k}, the identity element is 1.
Which element is the first element in group 1?
If we look at the periodic table, we can see that the first element in Group I is Hydrogen.
How does density tell you if an object will float pure water?
If an objects density is 1 or less, it will float on water
If an element has 1 valence electron what group is it in?
That element would be in the Alkali Metals (group one)
What element is the 3rd element?
lithium is the third element. It is placed in group-1
Why does colored sugar float in water?
any substance (colored or not) with a density less than 1 will float on water
What element is Group 1 period 4?
element K, or potassium
How do you float silk petals in water?
If the density is under 1 g/cm3 they can float.
Does rubidium float?
yes it does, along with other group 1 elements
