Niobi (Nb)

chemical element with symbol Nb and atomic number 41

Atomic Number	41
Atomic Weight	92.90637
mass number	93

Group	5
Period	5
Block	d

protoni	41 p⁺
nyutroni	52 n⁰
elektroni	41 e^-

Physical Property

Atomic Radius	145 pm 251 pm
molar volume	10.8 cm³/mol
Covalent Radius	147 pm 125 pm 116 pm 164 pm
Metallic Radius	134 pm 146 pm
ionic radius	72 pm 68 pm 79 pm 48 pm 64 pm 69 pm 74 pm
Crystal Radius	86 pm 82 pm 93 pm 62 pm 78 pm 83 pm 88 pm
Van der Waals radius	215 pm 218 pm 243 pm 316.5 pm
msongamano	8.57 g/cm³

Chemical Property

nishati

proton affinity
electron affinity	0.917406 eV/particle
ionization energy	6.75885 eV/particle 14.32 eV/particle 25 eV/particle 37.611 eV/particle 50.5728 eV/particle 102.069 eV/particle 119.14 eV/particle 136 eV/particle 159.2 eV/particle 180 eV/particle 200.28 eV/particle 246.1 eV/particle 268.59 eV/particle 482.5 eV/particle 530 eV/particle 581 eV/particle 636 eV/particle 688 eV/particle 758 eV/particle 816 eV/particle 877 eV/particle 940 eV/particle 1,000 eV/particle 1,176 eV/particle 1,230.6 eV/particle 1,293.7 eV/particle 1,368 eV/particle 1,439 eV/particle 1,500 eV/particle 1,625.9 eV/particle 1,684.969 eV/particle 4,020.1 eV/particle 4,187 eV/particle 4,369 eV/particle 4,540 eV/particle 4,815 eV/particle 5,011 eV/particle 5,265 eV/particle 5,426.065 eV/particle 22,648.045 eV/particle 23,388.8 eV/particle

enthalpy of vaporization	680 kJ/mol
enthalpy of fusion	26.8 kJ/mol
standard enthalpy of formation	733 kJ/mol
elektroni

Mzingo elektroni	2, 8, 18, 12, 1

valence electron	1 ⓘ

electron configuration	[Kr] 4d⁴ 5s¹ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 4d⁴ 5s¹

oxidation number	-3, -1, 0, 1, 2, 3, 4, 5
electronegativity	8.34 eV/particle 0.1280782 1.6
Electrophilicity Index	1.2609233730892566 eV/particle
fundamental state of matter

phase of matter	Solid
gaseous state of matter
Boiling Point	5,014.15 K
Melting Point	2,750.15 K
critical pressure
critical temperature
Kiwango utatu
appearance
Rangi	Gray #ff1493 #73c2c9 #73c2c9
appearance	gray metallic, bluish when oxidized
refractive index
thermodynamic material property
Thermal Conductivity	53.7 W/(m K)
thermal expansion	0.0000073 1/K
molar heat capacity	24.6 J/(mol K)
Specific Heat Capacity	0.265 J/(g⋅K)
heat capacity ratio
electrical properties
type	Conductor
electrical conductivity	6.7 MS/m
electrical resistivity	0.00000015 Ω*m
superconductivity	9.25 K
Uga sumaku
type	paramagnetic
magnetic susceptibility (Mass)	0.0000000276 m³/Kg
magnetic susceptibility (Molar)	0.00000000256 m³/mol
magnetic susceptibility (Volume)	0.000237
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal Structure	Body Centered Cubic (BCC)
lattice constant	3.3 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
hardness	736 MPa 6 MPa 1,320 MPa
bulk modulus	170 GPa
shear modulus	38 GPa
Young's modulus	105 GPa
Poisson's ratio	0.4
speed of sound	3,480 m/s
classification
Category	Transition metals, Transition metals
CAS Group	VA
IUPAC Group	VB
Glawe Number	53
Mendeleev Number	48
Pettifor Number	52
Geochemical Class	high field strength
Goldschmidt classification	litophile

other

Gas Basicity
polarizability	98 ± 8 a₀
C6 Dispersion Coefficient	1,140 a₀
allotrope
Neutron cross section	1.15
Neutron Mass Absorption	0.0004
quantum number	6D1/2
space group	229 (Im_3m)

Isotopes of Niobium

Stable Isotopes	1
Unstable Isotopes	37
Natural Isotopes	1

⁷⁹Nb

mass number	79
neutron number	38
Relative Atomic Mass	78.966022 ± 0.000537 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha
spin	9/2
nuclear quadrupole moment
Uvumbuzi
parity	+

hali ya kuoza	intensity
p (proton emission)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
β⁺ p (β⁺-delayed proton emission)

⁸⁰Nb

mass number	80
neutron number	39
Relative Atomic Mass	79.958754 ± 0.000429 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha
spin	4
nuclear quadrupole moment
Uvumbuzi
parity	-

hali ya kuoza	intensity
p (proton emission)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
β⁺ p (β⁺-delayed proton emission)

⁸¹Nb

mass number	81
neutron number	40
Relative Atomic Mass	80.95023 ± 0.000429 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha
spin	9/2
nuclear quadrupole moment
Uvumbuzi
parity	+

hali ya kuoza	intensity
p (proton emission)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
β⁺ p (β⁺-delayed proton emission)

⁸²Nb

mass number	82
neutron number	41
Relative Atomic Mass	81.94438 ± 0.000322 Da
g-factor	0
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	51 ± 5 ms
spin	0
nuclear quadrupole moment	0
Uvumbuzi	1992
parity	+

hali ya kuoza	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)

⁸³Nb

mass number	83
neutron number	42
Relative Atomic Mass	82.93815 ± 0.000174 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	3.9 ± 0.2 s
spin	9/2
nuclear quadrupole moment
Uvumbuzi	1988
parity	+

hali ya kuoza	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁴Nb

mass number	84
neutron number	43
Relative Atomic Mass	83.934305711 ± 0.00000043 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	9.8 ± 0.9 s
spin	1
nuclear quadrupole moment
Uvumbuzi	1977
parity	+

hali ya kuoza	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁵Nb

mass number	85
neutron number	44
Relative Atomic Mass	84.928845836 ± 0.0000044 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	20.5 ± 0.7 s
spin	9/2
nuclear quadrupole moment
Uvumbuzi	1988
parity	+

hali ya kuoza	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁶Nb

mass number	86
neutron number	45
Relative Atomic Mass	85.925781536 ± 0.000005903 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	88 ± 1 s
spin	6
nuclear quadrupole moment
Uvumbuzi	1974
parity	+

hali ya kuoza	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁷Nb

mass number	87
neutron number	46
Relative Atomic Mass	86.920692473 ± 0.000007302 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	3.7 ± 0.1 m
spin	1/2
nuclear quadrupole moment	0
Uvumbuzi	1971
parity

hali ya kuoza	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁸Nb

mass number	88
neutron number	47
Relative Atomic Mass	87.918226476 ± 0.000062059 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	14.5 ± 0.11 m
spin	8
nuclear quadrupole moment
Uvumbuzi	1964
parity	+

hali ya kuoza	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁸⁹Nb

mass number	89
neutron number	48
Relative Atomic Mass	88.913444696 ± 0.000025367 Da
g-factor	1.3813333333333 ± 0.0011111111111111
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	2.03 ± 0.07 h
spin	9/2
nuclear quadrupole moment
Uvumbuzi	1954
parity	+

hali ya kuoza	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁹⁰Nb

mass number	90
neutron number	49
Relative Atomic Mass	89.911259201 ± 0.000003561 Da
g-factor	0.61825 ± 0.0005
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	14.6 ± 0.05 h
spin	8
nuclear quadrupole moment	0.01 ± 0.04
Uvumbuzi	1951
parity	+

hali ya kuoza	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁹¹Nb

mass number	91
neutron number	50
Relative Atomic Mass	90.906990256 ± 0.00000314 Da
g-factor	1.4473333333333 ± 0.00066666666666667
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	680 ± 130 y
spin	9/2
nuclear quadrupole moment	-0.25 ± 0.03
Uvumbuzi	1951
parity	+

hali ya kuoza	intensity
ϵ (electron capture)	100%
e⁺ (positron emission)	0.0138%

⁹²Nb

mass number	92
neutron number	51
Relative Atomic Mass	91.90718858 ± 0.000001915 Da
g-factor	0.73285714285714 ± 0.00057142857142857
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	34.7 ± 2.4 My
spin	7
nuclear quadrupole moment	-0.35 ± 0.03
Uvumbuzi	1938
parity	+

hali ya kuoza	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

⁹³Nb

mass number	93
neutron number	52
Relative Atomic Mass	92.90637317 ± 0.000001599 Da
g-factor
natural abundance	100
Unururifu	stable isotope
Nusumaisha	Not Radioactive ☢️
spin	9/2
nuclear quadrupole moment	-0.32 ± 0.02
Uvumbuzi	1932
parity	+

⁹⁴Nb

mass number	94
neutron number	53
Relative Atomic Mass	93.907279001 ± 0.0000016 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	20.4 ± 0.4 ky
spin	6
nuclear quadrupole moment
Uvumbuzi	1938
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

⁹⁵Nb

mass number	95
neutron number	54
Relative Atomic Mass	94.90683111 ± 0.000000545 Da
g-factor	1.3646666666667 ± 0.0011111111111111
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	34.991 ± 0.006 d
spin	9/2
nuclear quadrupole moment
Uvumbuzi	1951
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

⁹⁶Nb

mass number	96
neutron number	55
Relative Atomic Mass	95.908101586 ± 0.000000157 Da
g-factor	0.82916666666667 ± 0.00066666666666667
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	23.35 ± 0.05 h
spin	6
nuclear quadrupole moment
Uvumbuzi	1949
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

⁹⁷Nb

mass number	97
neutron number	56
Relative Atomic Mass	96.908101622 ± 0.000004556 Da
g-factor	1.3673333333333 ± 0.0011111111111111
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	72.1 ± 0.7 m
spin	9/2
nuclear quadrupole moment
Uvumbuzi	1951
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

⁹⁸Nb

mass number	98
neutron number	57
Relative Atomic Mass	97.910332645 ± 0.000005369 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	2.86 ± 0.06 s
spin	1
nuclear quadrupole moment
Uvumbuzi	1960
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

⁹⁹Nb

mass number	99
neutron number	58
Relative Atomic Mass	98.911609377 ± 0.000012886 Da
g-factor	1.3244444444444 ± 0.0066666666666667
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	15 ± 0.2 s
spin	9/2
nuclear quadrupole moment	-0.41 ± 0.14
Uvumbuzi	1950
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

¹⁰⁰Nb

mass number	100
neutron number	59
Relative Atomic Mass	99.914340578 ± 0.000008562 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	1.5 ± 0.2 s
spin	1
nuclear quadrupole moment
Uvumbuzi	1967
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

¹⁰¹Nb

mass number	101
neutron number	60
Relative Atomic Mass	100.915306508 ± 0.000004024 Da
g-factor	1.2744 ± 0.0008
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	7.1 ± 0.3 s
spin	5/2
nuclear quadrupole moment	1.05 ± 0.07
Uvumbuzi	1970
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

¹⁰²Nb

mass number	102
neutron number	61
Relative Atomic Mass	101.918090447 ± 0.000002695 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	4.3 ± 0.4 s
spin	4
nuclear quadrupole moment
Uvumbuzi	1972
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%

¹⁰³Nb

mass number	103
neutron number	62
Relative Atomic Mass	102.919453416 ± 0.000004224 Da
g-factor	1.2532 ± 0.0016
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	1.34 ± 0.07 s
spin	5/2
nuclear quadrupole moment	1.08 ± 0.09
Uvumbuzi	1971
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

¹⁰⁴Nb

mass number	104
neutron number	63
Relative Atomic Mass	103.922907728 ± 0.000001915 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	0.98 ± 0.05 s
spin	5
nuclear quadrupole moment
Uvumbuzi	1976
parity	-

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.05%

¹⁰⁵Nb

mass number	105
neutron number	64
Relative Atomic Mass	104.924942577 ± 0.000004324 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	2.91 ± 0.05 s
spin	5/2
nuclear quadrupole moment
Uvumbuzi	1984
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1.7%

¹⁰⁶Nb

mass number	106
neutron number	65
Relative Atomic Mass	105.928928505 ± 0.00000152 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	900 ± 20 ms
spin	1
nuclear quadrupole moment
Uvumbuzi	1976
parity	-

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	4.5%

¹⁰⁷Nb

mass number	107
neutron number	66
Relative Atomic Mass	106.931589685 ± 0.000008612 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	286 ± 8 ms
spin	5/2
nuclear quadrupole moment
Uvumbuzi	1992
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	7.4%

¹⁰⁸Nb

mass number	108
neutron number	67
Relative Atomic Mass	107.936075604 ± 0.000008844 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	201 ± 4 ms
spin	2
nuclear quadrupole moment
Uvumbuzi	1994
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	6.3%
2n (2-neutron emission)

¹⁰⁹Nb

mass number	109
neutron number	68
Relative Atomic Mass	108.939141 ± 0.0004625 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	106.9 ± 4.9 ms
spin	3/2
nuclear quadrupole moment
Uvumbuzi	1994
parity	-

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	31%

¹¹⁰Nb

mass number	110
neutron number	69
Relative Atomic Mass	109.943843 ± 0.0009 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	75 ± 1 ms
spin	5
nuclear quadrupole moment
Uvumbuzi	1994
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	40%
2n (2-neutron emission)

¹¹¹Nb

mass number	111
neutron number	70
Relative Atomic Mass	110.947439 ± 0.000322 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	54 ± 2 ms
spin	3/2
nuclear quadrupole moment
Uvumbuzi	1997
parity	-

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹¹²Nb

mass number	112
neutron number	71
Relative Atomic Mass	111.952689 ± 0.000322 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	38 ± 2 ms
spin	1
nuclear quadrupole moment
Uvumbuzi	1997
parity	+

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹¹³Nb

mass number	113
neutron number	72
Relative Atomic Mass	112.956833 ± 0.000429 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	32 ± 4 ms
spin	3/2
nuclear quadrupole moment
Uvumbuzi	1997
parity	-

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹¹⁴Nb

mass number	114
neutron number	73
Relative Atomic Mass	113.962469 ± 0.000537 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	17 ± 5 ms
spin	2
nuclear quadrupole moment
Uvumbuzi	2010
parity	-

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹¹⁵Nb

mass number	115
neutron number	74
Relative Atomic Mass	114.966849 ± 0.000537 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha	23 ± 8 ms
spin	3/2
nuclear quadrupole moment
Uvumbuzi	2010
parity	-

hali ya kuoza	intensity
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹¹⁶Nb

mass number	116
neutron number	75
Relative Atomic Mass	115.972914 ± 0.000322 Da
g-factor
natural abundance
Unururifu	☢️ radioactive element
Nusumaisha
spin	1
nuclear quadrupole moment
Uvumbuzi	2018
parity	-

hali ya kuoza	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

historia

mgunduzi au mvumbuzi	Charles Hatchet
location of discovery	England
Uvumbuzi	1801
Etimolojia	From Niobe; daughter of the mythical Greek king Tantalus.
pronunciation	ni-OH-bee-em (Kiingereza)

source

Abundance
Abundance in Earth's crust	20 mg/kg
natural abundance (Bahari)	0.00001 mg/L
natural abundance (Mwili)
natural abundance (Kimondo)	0.000019 %
natural abundance (Jua)	0.0000004 %
Abundance in Universe	0.0000002 %

Nuclear Screening Constants

1	s	0.8577
2	p	4.0178
2	s	10.8748
3	d	14.753
3	p	16.3844
3	s	15.8285
4	d	29.7624
4	p	26.9156
4	s	25.7172
5	s	35.079

Niobi on ChemicalAid

Art & Architecture Thesaurus ID	300380228
Australian Educational Vocabulary ID	scot/3549
Biblioteca Nacional de España ID	XX543817
Bibliothèque nationale de France ID	12257830n
Brockhaus Enzyklopädie online ID	niob
CAB ID	224595
CAS Registry Number	7440-03-1
CPV Supplementary	AA40
ChEBI ID	33344
ChemSpider ID	22378
Common Procurement Vocabulary	14791000
DSSTOX compound identifier	DTXCID5031052
DSSTox substance ID	DTXSID4052479
Den Store Danske ID	niobium
ECHA Substance Infocard ID	100.028.284
Elhuyar ZTH ID	028674
Encyclopedia of China ID (Second Edition)	222935
Encyclopædia Britannica Online ID	science/niobium
Encyclopædia Universalis ID	niobium
Encyclopædia Universalis ID	tantale-et-niobium
Freebase ID	/m/025s4rg
GND	4042362-1
Golden ID	Niobium-KKGJ
Gran Enciclopèdia Catalana ID	0126369
Great Russian Encyclopedia Online ID	2664211
Human Metabolome Database ID	HMDB0061921
InChI	InChI=1S/Nb
InChIKey	GUCVJGMIXFAOAE-UHFFFAOYSA-N
KBpedia ID	Niobium
Kitambulisho cha Benki ya Dawa	13031
Library of Congress authority ID	sh85091993
MeSH descriptor ID	D009556
Mindat mineral ID	7981
NALT ID	54839
NDL Authority ID	00568530
National Library of Israel J9U ID	987007531486605171
OmegaWiki Defined Meaning	339099
OpenAlex ID	C507968137
PSH ID	5766
Probes And Drugs ID	PD058292
PubChem CID	23936
Quora topic ID	Niobium
RxNorm ID	1426867
Store norske leksikon ID	niob
Treccani ID	niobio
UNII	05175J654G
USGS Thesaurus ID	1521
WordNet 3.1 Synset ID	14671120-n
YSO ID	26934
ZVG number	7410

Niobi (Nb)

Physical Property

Chemical Property

other

Isotopes of Niobium

79Nb

80Nb

81Nb

82Nb

83Nb

84Nb

85Nb

86Nb

87Nb

88Nb

89Nb

90Nb

91Nb

92Nb

93Nb

94Nb

95Nb

96Nb

97Nb

98Nb

99Nb

100Nb

101Nb

102Nb

103Nb

104Nb

105Nb

106Nb

107Nb

108Nb

109Nb

110Nb

111Nb

112Nb

113Nb

114Nb

115Nb

116Nb

historia

source

Nuclear Screening Constants

⁷⁹Nb

⁸⁰Nb

⁸¹Nb

⁸²Nb

⁸³Nb

⁸⁴Nb

⁸⁵Nb

⁸⁶Nb

⁸⁷Nb

⁸⁸Nb

⁸⁹Nb

⁹⁰Nb

⁹¹Nb

⁹²Nb

⁹³Nb

⁹⁴Nb

⁹⁵Nb

⁹⁶Nb

⁹⁷Nb

⁹⁸Nb

⁹⁹Nb

¹⁰⁰Nb

¹⁰¹Nb

¹⁰²Nb

¹⁰³Nb

¹⁰⁴Nb

¹⁰⁵Nb

¹⁰⁶Nb

¹⁰⁷Nb

¹⁰⁸Nb

¹⁰⁹Nb

¹¹⁰Nb

¹¹¹Nb

¹¹²Nb

¹¹³Nb

¹¹⁴Nb

¹¹⁵Nb

¹¹⁶Nb