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Periodic Table Element Comparison: Compare Elements - Niobium vs Curium

Compare Niobium and Curium

Compare Niobium and Curium on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known while we study periodic table elements. You can study the detailed comparison between Niobium vs Curium with most reliable information about their properties, attributes, facts, uses etc. You can compare Nb vs Cm on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

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1
1
H
Hydrogen
1.008

Atomic #

Electronic Shell #

Symbol
Name
Atomic Weight
HGas
HgLiquid
CSolid
Metals
Metalloids
NonMetals
Alkali metals
Alkali earth metals
Lanthanoids
Transition metals
Post-transition metals
Other nonmetals
Halogens
Nobel gas
Actinoids
2
He
Helium
4.003
2
3
Li
Lithium
6.941
4
Be
Beryllium
9.012
5
B
Boron
10.811
6
C
Carbon
12.011
7
N
Nitrogen
14.007
8
O
Oxygen
15.999
9
F
Fluorine
18.998
10
Ne
Neon
20.180
3
11
Na
Sodium
22.990
12
Mg
Magnesium
24.305
13
Al
Aluminium
26.982
14
Si
Silicon
28.085
15
P
Phosphorus
30.974
16
S
Sulfur
32.065
17
Cl
Chlorine
35.453
18
Ar
Argon
39.948
4
19
K
Potassium
39.098
20
Ca
Calcium
40.078
21
Sc
Scandium
44.956
22
Ti
Titanium
47.867
23
V
Vanadium
50.941
24
Cr
Chromium
51.996
25
Mn
Manganese
54.938
26
Fe
Iron
55.845
27
Co
Cobalt
58.933
28
Ni
Nickel
58.693
29
Cu
Copper
63.546
30
Zn
Zinc
65.409
31
Ga
Gallium
69.723
32
Ge
Germanium
72.640
33
As
Arsenic
74.922
34
Se
Selenium
78.960
35
Br
Bromine
79.904
36
Kr
Krypton
83.798
5
37
Rb
Rubidium
85.468
38
Sr
Strontium
87.620
39
Y
Yttrium
88.906
40
Zr
Zirconium
91.224
41
Nb
Niobium
92.906
42
Mo
Molybdenum
95.940
43
Tc
Technetium
98
44
Ru
Ruthenium
101.070
45
Rh
Rhodium
102.906
46
Pd
Palladium
106.420
47
Ag
Silver
107.868
48
Cd
Cadmium
112.411
49
In
Indium
114.818
50
Sn
Tin
118.710
51
Sb
Antimony
121.760
52
Te
Tellurium
127.600
53
I
Iodine
126.904
54
Xe
Xenon
131.293
6
55
Cs
Cesium
132.905
56
Ba
Barium
137.327
57 - 71
La - Lu
Lanthanides
72
Hf
Hafnium
178.490
73
Ta
Tantalum
180.948
74
W
Tungsten
183.840
75
Re
Rhenium
186.207
76
Os
Osmium
190.230
77
Ir
Iridium
192.217
78
Pt
Platinum
195.078
79
Au
Gold
196.967
80
Hg
Mercury
200.590
81
Tl
Thallium
204.383
82
Pb
Lead
207.200
83
Bi
Bismuth
208.980
84
Po
Polonium
209
85
At
Astatine
210
86
Rn
Radon
222
7
87
Fr
Francium
223
88
Ra
Radium
226
89 - 103
Ac - Lr
Actinides
104
Rf
Rutherfordium
261
105
Db
Dubnium
262
106
Sg
Seaborgium
266
107
Bh
Bohrium
264
108
Hs
Hassium
277
109
Mt
Meitnerium
268
110
Ds
Darmstadtium
281
111
Rg
Roentgenium
272
112
Cn
Copernicium
285
113
Nh
Nihonium
284
114
Fl
Flerovium
289
115
Mc
Moscovium
288
116
Lv
Livermorium
292
117
Ts
Tennessine
294
118
Og
Oganesson
294
Lanthanides
57
La
Lanthanum
138.905
58
Ce
Cerium
140.116
59
Pr
Praseodymium
140.908
60
Nd
Neodymium
144.240
61
Pm
Promethium
145
62
Sm
Samarium
150.360
63
Eu
Europium
151.964
64
Gd
Gadolinium
157.250
65
Tb
Terbium
158.925
66
Dy
Dysprosium
162.500
67
Ho
Holmium
164.930
68
Er
Erbium
167.259
69
Tm
Thulium
168.934
70
Yb
Ytterbium
173.040
71
Lu
Lutetium
174.967
Actinides
89
Ac
Actinium
227
90
Th
Thorium
232.038
91
Pa
Protactinium
231.036
92
U
Uranium
238.029
93
Np
Neptunium
237
94
Pu
Plutonium
244
95
Am
Americium
243
96
Cm
Curium
247
97
Bk
Berkelium
247
98
Cf
Californium
251
99
Es
Einsteinium
252
100
Fm
Fermium
257
101
Md
Mendelevium
258
102
No
Nobelium
259
103
Lr
Lawrencium
262

Facts

NameNiobiumCurium
Atomic Number4196
Atomic SymbolNbCm
Atomic Weight92.90638 247
Phase at STPSolid Solid
ColorGray Silver
Metallic ClassificationTransition Metal Actinide
Group in Periodic Tablegroup 5 group -
Group Namevanadium family
Period in Periodic Tableperiod 5 period 7
Block in Periodic Tabled -blockf -block
Electronic Configuration[Kr] 4d4 5s1 [Rn] 5f7 6d1 7s2
Electronic Shell Structure (Electrons per shell)2, 8, 18, 12, 12, 8, 18, 32, 25, 9, 2
Melting Point2750 K1618 K
Boiling Point5017 K3383 K
CAS NumberCAS7440-03-1 CAS7440-51-9
Neighborhood ElementsNeighborhood Elements of NiobiumNeighborhood Elements of Curium

History

HistoryThe element Niobium was discovered by C. Hatchett in year 1801 in United Kingdom. Niobium derived its name from Niobe, daughter of king Tantalus from Greek mythology.The element Curium was discovered by G. T. Seaborg, R. A. James and A. Ghiorso in year 1944 in United States. Curium derived its name from Pierre Curie, a physicist, and Marie Curie, a physicist and chemist, named after great scientists by analogy with gadolinium.
DiscoveryC. Hatchett (1801)G. T. Seaborg, R. A. James and A. Ghiorso (1944)
IsolatedW. Blomstrand (1864) ()

Presence: Abundance in Nature and Around Us

Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)

Abundance in Universe2 / 0.02- / -
Abundance in Sun4 / 0.05- / -
Abundance in Meteorites190 / 30- / -
Abundance in Earth's Crust17000 / 3700- / -
Abundance in Oceans0.001 / 0.000067- / -
Abundance in Humans- / -- / -

Crystal Structure and Atomic Structure

Atomic Volume10.841 cm3/mol18.05 cm3/mol
Atomic Radius198 pm-
Covalent Radius137 pm-
Van der Waals Radius- -
Atomic SpectrumAtomic Spectrum of Niobium | SchoolMyKidsAtomic Spectrum of Curium | SchoolMyKids
Lattice Constant330.04, 330.04, 330.04 pm349.6, 349.6, 1133.1 pm
Lattice Angleπ/2, π/2, π/2π/2, π/2, 2 π/3
Space Group NameIm_ 3m P63/mmc
Space Group Number229 194
Crystal Structure

Body Centered Cubic

41 Nb Niobium - Crystal Structure | SchoolMyKids

Simple Hexagonal

96 Cm Curium - Crystal Structure | SchoolMyKids

Atomic and Orbital Properties

Atomic Number4196
Number of Electrons (with no charge)4196
Number of Protons4196
Mass Number92.90638247
Number of Neutrons52151
Shell structure (Electrons per energy level)2, 8, 18, 12, 12, 8, 18, 32, 25, 9, 2
Electron Configuration[Kr] 4d4 5s1 [Rn] 5f7 6d1 7s2
Valence Electrons4d4 5s1 5f7 6d1 7s2
Oxidation State53
Atomic Term Symbol (Quantum Numbers)6D1/2 9D2
Shell structure41 Nb Niobium - Electron Shell Structure | SchoolMyKids96 Cm Curium - Electron Shell Structure | SchoolMyKids

Isotopes and Nuclear Properties

Niobium has 1 stable naturally occuring isotopes while Curium has 0 stable naturally occuring isotopes.

Known Isotopes81Nb, 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, 113Nb233Cm, 234Cm, 235Cm, 236Cm, 237Cm, 238Cm, 239Cm, 240Cm, 241Cm, 242Cm, 243Cm, 244Cm, 245Cm, 246Cm, 247Cm, 248Cm, 249Cm, 250Cm, 251Cm, 252Cm
Stable IsotopesNaturally occurring stable isotopes:

93Nb

Neutron Cross Section 1.15 60
Neutron Mass Absorption 0.0004 -

Chemical Properties: Ionization Energies and electron affinity

Valence or Valency5 4
Electronegativity1.6 Pauling Scale1.28 Pauling Scale
Electron Affinity86.1 kJ/mol-
Ionization Energies
1st: 652.1 kJ/mol
2nd: 1380 kJ/mol
3rd: 2416 kJ/mol
4th: 3700 kJ/mol
5th: 4877 kJ/mol
6th: 9847 kJ/mol
7th: 12100 kJ/mol
1st: 581 kJ/mol

Physical Properties

Density8.57 g/cm313.51 g/cm3
Molar Volume10.841 cm3/mol18.05 cm3/mol

Elastic Properties

Young Modulus105 -
Shear Modulus38 GPa-
Bulk Modulus170 GPa-
Poisson Ratio0.4 -

Hardness - Tests to Measure of Hardness of Element

Mohs Hardness6 MPa-
Vickers Hardness1320 MPa-
Brinell Hardness736 MPa-

Electrical Properties

Electrical Conductivity6700000 S/m-
Resistivity 1.5e-7 m Ω-
Superconducting Point9.25 -

Heat and Conduction Properties

Thermal Conductivity54 W/(m K)-
Thermal Expansion0.00000729 /K-

Magnetic Properties

Magnetic TypeParamagnetic -
Curie Point- -
Mass Magnetic Susceptibility2.76e-8 m3/kg-
Molar Magnetic Susceptibility2.56e-9 m3/mol-
Volume Magnetic Susceptibility0.000237 -

Optical Properties

Refractive Index- -

Acoustic Properties

Speed of Sound3480 m/s-

Thermal Properties - Enthalpies and thermodynamics

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS NumberCAS7440-03-1 CAS7440-51-9
RTECS NumberRTECSQT9900000 -
DOT Hazard Class- -
DOT Numbers- -
EU Number- -
NFPA Fire Rating- -
NFPA Hazards- -
NFPA Health Rating- -
NFPA Reactivity Rating- -
AutoIgnition Point- -
Flashpoint- -

Compare With Other Elements

Compare Niobium with all Group 5 elements

Compare Niobium with all Period 5 elements

Compare Niobium with all Transition Metal elements

Compare Curium with all Group elements

Compare Curium with all Period 7 elements

Compare Curium with all Actinide elements