Kalium

Kalium (K)

chemical element with symbol K and atomic number 19
Atomic Number19
Atomic Weight39.0983
mass number39
Group1
Period4
Blocks
Proton19 p+
Neutron20 n0
Elektron19 e-
Animated Bohr model of K (Kalium)

Physikalesch Eegenschaft

Atomic Radius
molar volume
Covalent Radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
density
Atomic Radii Of The Elements: Kalium0102030405060708090100110120130140150160170180190200210220230240250260270280pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energie
proton affinity
electron affinity
ionization energy
ionization energy of K (Kalium)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
Elektron
electron shell2, 8, 8, 1
Bohr model: K (Kalium)
valence electron1
Lewis structure: K (Kalium)
electron configuration[Ar] 4s1
1s2 2s2 2p6 3s2 3p6 4s1
Enhanced Bohr model of K (Kalium)
Orbital Diagram of K (Kalium)
oxidation number-1, 1
electronegativity
0.82
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
Faarf
Silver
appearancesilvery gray
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
electrical resistivity
superconductivity
Magnetismus
typeparamagnetic
magnetic susceptibility (Mass)
0,0000000067 m³/Kg
magnetic susceptibility (Molar)
0,000000000262 m³/mol
magnetic susceptibility (Volume)
0,00000574
magnetic ordering
Curie temperature
Néel temperature
Struktur
Crystal StructureBody Centered Cubic (BCC)
lattice constant
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
CategoryAlkali metals, Alkali metals
CAS GroupIA
IUPAC GroupIA
Glawe Number10
Mendeleev Number3
Pettifor Number10
Geochemical Classalkali metal
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
2,1
Neutron Mass Absorption
0,0018
quantum number2S1/2
space group229 (Im_3m)

Isotopes of Potassium

Stable Isotopes2
Unstable Isotopes27
Natural Isotopes3
Isotopic Composition3993.26%3993.26%416.73%416.73%400.01%400.01%

31K

mass number31
neutron number12
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung2019
parity+

decay modeintensity
3p100%

32K

mass number32
neutron number13
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin1
nuclear quadrupole moment
Datum vun der Entdeckung
parity+

decay modeintensity
p (proton emission)

33K

mass number33
neutron number14
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung
parity+

decay modeintensity
p (proton emission)

34K

mass number34
neutron number15
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin1
nuclear quadrupole moment
Datum vun der Entdeckung
parity+

decay modeintensity
p (proton emission)

35K

mass number35
neutron number16
Relative Atomic Mass
g-factor
0,26133333333333 ± 0,0046666666666667
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
175,2 ± 1,9 ms
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung1976
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.37%

36K

mass number36
neutron number17
Relative Atomic Mass
g-factor
0,274 ± 0,0005
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
341 ± 3 ms
spin2
nuclear quadrupole moment
Datum vun der Entdeckung1967
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.048%
β+α (β+-delayed α emission)0.0034%

37K

mass number37
neutron number18
Relative Atomic Mass
g-factor
0,13547333333333 ± 0,00004
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
1,23651 ± 0,00094 s
spin3/2
nuclear quadrupole moment
0,109 ± 0,004
Datum vun der Entdeckung1958
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

38K

mass number38
neutron number19
Relative Atomic Mass
g-factor
0,457 ± 0,002
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
7,651 ± 0,019 m
spin3
nuclear quadrupole moment
Datum vun der Entdeckung1937
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

39K

mass number39
neutron number20
Relative Atomic Mass
g-factor
0,26098 ± 0,0000053333333333333
natural abundance
93,2581 ± 0,0044
Radioaktivitéitstable isotope
half-lifeNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,0603 ± 0,0006
Datum vun der Entdeckung1921
parity+

40K

mass number40
neutron number21
Relative Atomic Mass
g-factor
natural abundance
0,0117 ± 0,0001
Radioaktivitéit☢️ radioactive element
half-life
1,248 ± 0,003 Gy
spin4
nuclear quadrupole moment
-0,075 ± 0,0008
Datum vun der Entdeckung1935
parity-

decay modeintensity
β (β decay)89.28%
β+ (β+ decay; β+ = ϵ + e+)10.72%

41K

mass number41
neutron number22
Relative Atomic Mass
g-factor
0,143248 ± 0,0000033333333333333
natural abundance
6,7302 ± 0,0044
Radioaktivitéitstable isotope
half-lifeNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,0734 ± 0,0007
Datum vun der Entdeckung1921
parity+

42K

mass number42
neutron number23
Relative Atomic Mass
g-factor
-0,57125 ± 0,0003
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
12,355 ± 0,007 h
spin2
nuclear quadrupole moment
Datum vun der Entdeckung1935
parity-

decay modeintensity
β (β decay)100%

43K

mass number43
neutron number24
Relative Atomic Mass
g-factor
0,10886666666667 ± 0,00053333333333333
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
22,3 ± 0,1 h
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung1949
parity+

decay modeintensity
β (β decay)100%

44K

mass number44
neutron number25
Relative Atomic Mass
g-factor
-0,428 ± 0,002
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
22,13 ± 0,19 m
spin2
nuclear quadrupole moment
Datum vun der Entdeckung1954
parity-

decay modeintensity
β (β decay)100%

45K

mass number45
neutron number26
Relative Atomic Mass
g-factor
0,1156 ± 0,00053333333333333
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
17,8 ± 0,6 m
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung1964
parity+

decay modeintensity
β (β decay)100%

46K

mass number46
neutron number27
Relative Atomic Mass
g-factor
-0,5255 ± 0,003
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
96,3 ± 0,08 s
spin2
nuclear quadrupole moment
Datum vun der Entdeckung1965
parity-

decay modeintensity
β (β decay)100%

47K

mass number47
neutron number28
Relative Atomic Mass
g-factor
3,866 ± 0,018
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
17,38 ± 0,03 s
spin1/2
nuclear quadrupole moment
0
Datum vun der Entdeckung1964
parity+

decay modeintensity
β (β decay)100%

48K

mass number48
neutron number29
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
6,83 ± 0,14 s
spin1
nuclear quadrupole moment
Datum vun der Entdeckung1972
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)1.14%

49K

mass number49
neutron number30
Relative Atomic Mass
g-factor
2,6772 ± 0,0016
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
1,26 ± 0,05 s
spin1/2
nuclear quadrupole moment
0
Datum vun der Entdeckung1972
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)86%

50K

mass number50
neutron number31
Relative Atomic Mass
g-factor
0
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
472 ± 4 ms
spin0
nuclear quadrupole moment
0
Datum vun der Entdeckung1972
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)28.6%
2n (2-neutron emission)

51K

mass number51
neutron number32
Relative Atomic Mass
g-factor
0,342 ± 0,0013333333333333
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
365 ± 5 ms
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung1983
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)65%
2n (2-neutron emission)

52K

mass number52
neutron number33
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
110 ± 4 ms
spin2
nuclear quadrupole moment
Datum vun der Entdeckung1983
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)72.2%
2n (2-neutron emission)2.3%

53K

mass number53
neutron number34
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
30 ± 5 ms
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung1983
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)64%
2n (2-neutron emission)10%

54K

mass number54
neutron number35
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
10 ± 5 ms
spin2
nuclear quadrupole moment
Datum vun der Entdeckung1983
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

55K

mass number55
neutron number36
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung2009
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

56K

mass number56
neutron number37
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin2
nuclear quadrupole moment
Datum vun der Entdeckung2009
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

57K

mass number57
neutron number38
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung2018
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

58K

mass number58
neutron number39
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin2
nuclear quadrupole moment
Datum vun der Entdeckung2019
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)

59K

mass number59
neutron number40
Relative Atomic Mass
g-factor
natural abundance
Radioaktivitéit☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
Datum vun der Entdeckung2018
parity+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
2n (2-neutron emission)
Kalium

Geschicht

Entdecker oder ErfinderSir Humphrey Davy
location of discoveryEngland
Datum vun der Entdeckung1807
EtymologieEnglish: pot ash; symbol from Latin: kalium, (alkali).
pronunciationpe-TASS-i-em (Englesch)

Quell

Abundance
Abundance in Earth's crust
natural abundance (Ozean)
natural abundance (Mënschleche Kierper)
0,2 %
natural abundance (Meteoroid)
0,07 %
natural abundance (Sonn)
0,0004 %
Abundance in Universe
0,0003 %

Nuclear Screening Constants

1s0.5105
2p3.9728
2s5.9938
3p11.2744
3s10.3201
4s15.5048