Kalium (K)

chemical element with symbol K and atomic number 19

Atomic Number	19
Atomic Weight	39.0983
Numri i masës	39

Group	1
Period	4
Block	s

protoni	19 p⁺
neutroni	20 n⁰
elektroni	19 e^-

Tipar Fizik

Atomic Radius	220 pm 234 pm
molar volume	45,3 cm³/mol
covalent radius	196 pm 193 pm 207 pm 203 pm
Metallic Radius	203 pm 235 pm
ionic radius	137 pm 138 pm 146 pm 151 pm 155 pm 159 pm 164 pm
Crystal Radius	151 pm 152 pm 160 pm 165 pm 169 pm 173 pm 178 pm
Van der Waals radius	280 pm 275 pm 275 pm 309 pm 381,2 pm
density	0,89 g/cm³ 828 kg/m³

Chemical Property

{ERROR}

energjia

proton affinity
electron affinity	0,50147 eV/particle
ionization energy	4,34066354 eV/particle 31,625 eV/particle 45,8031 eV/particle 60,917 eV/particle 82,66 eV/particle 99,4 eV/particle 117,56 eV/particle 154,87 eV/particle 175,8174 eV/particle 503,67 eV/particle 565,6 eV/particle 631 eV/particle 714,71 eV/particle 786,26 eV/particle 860,92 eV/particle 967,66 eV/particle 1 034,541 eV/particle 4 610,86998 eV/particle 4 934,0482 eV/particle

enthalpy of vaporization	2,33 kJ/mol
enthalpy of fusion	102,5 kJ/mol
standard enthalpy of formation	89 kJ/mol
elektroni

electron shell	2, 8, 8, 1

valence electron	1 ⓘ

konfigurimi i elektronit	[Ar] 4s¹ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹

oxidation number	-1, 1
Elektronegativiteti	4,34 eV/particle 0.0981896 0.82
Electrophilicity Index	0,7633848415985606 eV/particle
fundamental state of matter

gjendja agregate e materies
gaseous state of matter
Boiling Point	1 032,15 K
Melting Point	336,65 K
critical pressure	16 MPa
critical temperature	2 223,15 K
triple point
appearance
Ngjyra	Black #ff1493 #8f40d4 #8f40d4
appearance	silvery gray
refractive index
thermodynamic material property
Thermal Conductivity	79 W/(m K)
thermal expansion
molar heat capacity	29,6 J/(mol K)
Specific Heat Capacity	0,757 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	14 MS/m
electrical resistivity	0,00000007000000000002 Ω*m
Superpërcjellshmëria
Magnetizimi
type	paramagnetic
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
strukturë
Crystal Structure	{ERROR}
lattice constant	5,23 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
hardness	0,363 MPa 0,4 MPa
bulk modulus	3,1 GPa
shear modulus	1,3 GPa
Young's modulus
Poisson's ratio
Shpejtësia e zërit	2 000 m/s
klasifikim
Category	Actinides, Alkali metals
CAS Group	IA
IUPAC Group	IA
Glawe Number	10
Mendeleev Number	3
Pettifor Number	10
Geochemical Class	alkali metal
Goldschmidt classification	litophile

other

Gas Basicity
polarizability	289,7 ± 0,3 a₀
C6 Dispersion Coefficient	3 923 a₀ 3 910 a₀
allotrope
Neutron cross section	2,1
Neutron Mass Absorption	0,0018
numër kuantik	2S1/2
space group	229 (Im_3m)

Isotopes of Potassium

Stable Isotopes	2
Unstable Isotopes	27
Natural Isotopes	3

³¹K

Numri i masës	31
numri i neutroneve	12
Relative Atomic Mass	31,03678 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2019
parity	+

decay mode	intensitet
3p	100%

³²K

Numri i masës	32
numri i neutroneve	13
Relative Atomic Mass	32,023607 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	1
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity	+

decay mode	intensitet
p (proton emission)

³³K

Numri i masës	33
numri i neutroneve	14
Relative Atomic Mass	33,008095 ± 0,000215 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity	+

decay mode	intensitet
p (proton emission)

³⁴K

Numri i masës	34
numri i neutroneve	15
Relative Atomic Mass	33,99869 ± 0,00021 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	1
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity	+

decay mode	intensitet
p (proton emission)

³⁵K

Numri i masës	35
numri i neutroneve	16
Relative Atomic Mass	34,988005406 ± 0,00000055 Da
g-factor	0,26133333333333 ± 0,0046666666666667
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	175,2 ± 1,9 ms
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1976
parity	+

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

³⁶K

Numri i masës	36
numri i neutroneve	17
Relative Atomic Mass	35,981301887 ± 0,000000349 Da
g-factor	0,274 ± 0,0005
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	341 ± 3 ms
Spini	2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1967
parity	+

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

³⁷K

Numri i masës	37
numri i neutroneve	18
Relative Atomic Mass	36,97337589 ± 0,0000001 Da
g-factor	0,13547333333333 ± 0,00004
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	1,23651 ± 0,00094 s
Spini	3/2
nuclear quadrupole moment	0,109 ± 0,004
koha e zbulimit apo shpikjes	1958
parity	+

decay mode	intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

³⁸K

Numri i masës	38
numri i neutroneve	19
Relative Atomic Mass	37,969081114 ± 0,000000209 Da
g-factor	0,457 ± 0,002
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	7,651 ± 0,019 m
Spini	3
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1937
parity	+

decay mode	intensitet
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

³⁹K

Numri i masës	39
numri i neutroneve	20
Relative Atomic Mass	38,96370648482 ± 0,00000000489 Da
g-factor	0,26098 ± 0,0000053333333333333
natural abundance	93,2581 ± 0,0044
Radioaktivitet	stable isotope
half-life	Not Radioactive ☢️
Spini	3/2
nuclear quadrupole moment	0,0603 ± 0,0006
koha e zbulimit apo shpikjes	1921
parity	+

⁴⁰K

Numri i masës	40
numri i neutroneve	21
Relative Atomic Mass	39,963998165 ± 0,00000006 Da
g-factor
natural abundance	0,0117 ± 0,0001
Radioaktivitet	☢️ radioactive element
half-life	1,248 ± 0,003 Gy
Spini	4
nuclear quadrupole moment	-0,075 ± 0,0008
koha e zbulimit apo shpikjes	1935
parity	-

decay mode	intensitet
β⁻ (β⁻ decay)	89.28%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	10.72%

⁴¹K

Numri i masës	41
numri i neutroneve	22
Relative Atomic Mass	40,96182525611 ± 0,00000000403 Da
g-factor	0,143248 ± 0,0000033333333333333
natural abundance	6,7302 ± 0,0044
Radioaktivitet	stable isotope
half-life	Not Radioactive ☢️
Spini	3/2
nuclear quadrupole moment	0,0734 ± 0,0007
koha e zbulimit apo shpikjes	1921
parity	+

⁴²K

Numri i masës	42
numri i neutroneve	23
Relative Atomic Mass	41,962402305 ± 0,000000113 Da
g-factor	-0,57125 ± 0,0003
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	12,355 ± 0,007 h
Spini	2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1935
parity	-

decay mode	intensitet
β⁻ (β⁻ decay)	100%

⁴³K

Numri i masës	43
numri i neutroneve	24
Relative Atomic Mass	42,960734701 ± 0,00000044 Da
g-factor	0,10886666666667 ± 0,00053333333333333
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	22,3 ± 0,1 h
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1949
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)	100%

⁴⁴K

Numri i masës	44
numri i neutroneve	25
Relative Atomic Mass	43,961586984 ± 0,00000045 Da
g-factor	-0,428 ± 0,002
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	22,13 ± 0,19 m
Spini	2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1954
parity	-

decay mode	intensitet
β⁻ (β⁻ decay)	100%

⁴⁵K

Numri i masës	45
numri i neutroneve	26
Relative Atomic Mass	44,960691491 ± 0,00000056 Da
g-factor	0,1156 ± 0,00053333333333333
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	17,8 ± 0,6 m
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1964
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)	100%

⁴⁶K

Numri i masës	46
numri i neutroneve	27
Relative Atomic Mass	45,961981584 ± 0,00000078 Da
g-factor	-0,5255 ± 0,003
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	96,3 ± 0,08 s
Spini	2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1965
parity	-

decay mode	intensitet
β⁻ (β⁻ decay)	100%

⁴⁷K

Numri i masës	47
numri i neutroneve	28
Relative Atomic Mass	46,961661612 ± 0,0000015 Da
g-factor	3,866 ± 0,018
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	17,38 ± 0,03 s
Spini	1/2
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1964
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)	100%

⁴⁸K

Numri i masës	48
numri i neutroneve	29
Relative Atomic Mass	47,965341184 ± 0,00000083 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	6,83 ± 0,14 s
Spini	1
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1972
parity	-

decay mode	intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.14%

⁴⁹K

Numri i masës	49
numri i neutroneve	30
Relative Atomic Mass	48,968210753 ± 0,00000086 Da
g-factor	2,6772 ± 0,0016
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	1,26 ± 0,05 s
Spini	1/2
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1972
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	86%

⁵⁰K

Numri i masës	50
numri i neutroneve	31
Relative Atomic Mass	49,972380015 ± 0,0000083 Da
g-factor	0
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	472 ± 4 ms
Spini	0
nuclear quadrupole moment	0
koha e zbulimit apo shpikjes	1972
parity	-

decay mode	intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	28.6%
2n (2-neutron emission)

⁵¹K

Numri i masës	51
numri i neutroneve	32
Relative Atomic Mass	50,975828664 ± 0,000014 Da
g-factor	0,342 ± 0,0013333333333333
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	365 ± 5 ms
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1983
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	65%
2n (2-neutron emission)

⁵²K

Numri i masës	52
numri i neutroneve	33
Relative Atomic Mass	51,981602 ± 0,000036 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	110 ± 4 ms
Spini	2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1983
parity	-

decay mode	intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	72.2%
2n (2-neutron emission)	2.3%

⁵³K

Numri i masës	53
numri i neutroneve	34
Relative Atomic Mass	52,9868 ± 0,00012 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	30 ± 5 ms
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1983
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	64%
2n (2-neutron emission)	10%

⁵⁴K

Numri i masës	54
numri i neutroneve	35
Relative Atomic Mass	53,994471 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life	10 ± 5 ms
Spini	2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	1983
parity	-

decay mode	intensitet
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁵⁵K

Numri i masës	55
numri i neutroneve	36
Relative Atomic Mass	55,000505 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2009
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁵⁶K

Numri i masës	56
numri i neutroneve	37
Relative Atomic Mass	56,008567 ± 0,000644 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2009
parity	-

decay mode	intensitet
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁵⁷K

Numri i masës	57
numri i neutroneve	38
Relative Atomic Mass	57,015169 ± 0,000644 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2018
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁵⁸K

Numri i masës	58
numri i neutroneve	39
Relative Atomic Mass	58,023543 ± 0,000751 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2019
parity	-

decay mode	intensitet
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

⁵⁹K

Numri i masës	59
numri i neutroneve	40
Relative Atomic Mass	59,030864 ± 0,000859 Da
g-factor
natural abundance
Radioaktivitet	☢️ radioactive element
half-life
Spini	3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes	2018
parity	+

decay mode	intensitet
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

historia

zbulues	Sir Humphrey Davy
vendndodhja e zbulimit	England
koha e zbulimit apo shpikjes	1807
Etimologjia	English: pot ash; symbol from Latin: kalium, (alkali).
pronunciation	pe-TASS-i-em (anglisht)

burim

Abundance
Abundance in Earth's crust	20 900 mg/kg
natural abundance (Oqeani)	399 mg/L
natural abundance (Trupi i njeriut)	0,2 %
natural abundance (meteoroid)	0,07 %
natural abundance (Diell)	0,0004 %
Abundance in Universe	0,0003 %

Nuclear Screening Constants

1	s	0.5105
2	p	3.9728
2	s	5.9938
3	p	11.2744
3	s	10.3201
4	s	15.5048

Kalium on ChemicalAid

Kalium (K)

Tipar Fizik

Chemical Property

other

Isotopes of Potassium

31K

32K

33K

34K

35K

36K

37K

38K

39K

40K

41K

42K

43K

44K

45K

46K

47K

48K

49K

50K

51K

52K

53K

54K

55K

56K

57K

58K

59K

historia

burim

Nuclear Screening Constants

³¹K

³²K

³³K

³⁴K

³⁵K

³⁶K

³⁷K

³⁸K

³⁹K

⁴⁰K

⁴¹K

⁴²K

⁴³K

⁴⁴K

⁴⁵K

⁴⁶K

⁴⁷K

⁴⁸K

⁴⁹K

⁵⁰K

⁵¹K

⁵²K

⁵³K

⁵⁴K

⁵⁵K

⁵⁶K

⁵⁷K

⁵⁸K

⁵⁹K