|
gptkbp:instanceOf
|
gptkb:group_of_chemical_elements
|
|
gptkbp:appearance
|
silvery
|
|
gptkbp:atomicRadius
|
increases down the group
|
|
gptkbp:canExtract
|
electrolysis of molten salts
|
|
gptkbp:characteristic
|
highly reactive
form strong bases with water
low melting points
soft metals
low densities
|
|
gptkbp:containsElement
|
gptkb:Francium
gptkb:Cesium
gptkb:Lithium
gptkb:Rubidium
Potassium
Sodium
|
|
gptkbp:density
|
less than water (except potassium, rubidium, cesium, francium)
|
|
gptkbp:discoveredBy
|
gptkb:Humphry_Davy
|
|
gptkbp:discoveredIn
|
gptkb:19th_century
|
|
gptkbp:doNotOccur
|
free in nature
|
|
gptkbp:electronegativity
|
low
|
|
gptkbp:excludes
|
gptkb:Hydrogen
|
|
gptkbp:flameTestColor
|
characteristic colors
|
|
gptkbp:form
|
salts
ionic compounds
colorless ions in solution
|
|
gptkbp:foundIn
|
s-block of periodic table
|
|
gptkbp:ionizationEnergy
|
low
|
|
gptkbp:nameOrigin
|
alkali, Arabic for 'ashes'
|
|
gptkbp:oxidationStates
|
+1
|
|
gptkbp:periodicTableGroup
|
Group 1
|
|
gptkbp:reactionWithWater
|
form hydroxides
produce hydrogen gas
|
|
gptkbp:relatedGroup
|
1
|
|
gptkbp:solubility
|
compounds are generally soluble in water
|
|
gptkbp:storage
|
stored under oil
|
|
gptkbp:symbol
|
gptkb:Li
K
Cs
Fr
Na
Rb
|
|
gptkbp:type
|
increase down the group
|
|
gptkbp:usedIn
|
batteries
photoelectric cells
heat transfer agents
|
|
gptkbp:valenceElectrons
|
1
|
|
gptkbp:bfsParent
|
gptkb:Alkali_feldspar
|
|
gptkbp:bfsLayer
|
7
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Alkali metals
|