Periodic Table Element Comparison: Compare Elements - Niobium vs Actinium
Compare Niobium and Actinium
Compare Niobium and Actinium 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 Actinium with most reliable information about their properties, attributes, facts, uses etc. You can compare Nb vs Ac on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.
Facts
Name |
Atomic Number |
Atomic Symbol |
Atomic Weight |
Phase |
Color |
Classification |
Group in Periodic Table |
Group Name |
Period in Periodic Table |
Block in Periodic Table |
Electronic Configuration |
Melting Point |
Boiling Point |
Electronic Shell Structure |
CAS Number |
Neighborhood Elements |
Niobium |
41 |
Nb |
92.90638 |
Solid |
Gray |
transition metal |
5 |
vanadium family |
5 |
d |
[Kr] 4d4 5s1 |
2477 °C |
4744 °C |
2, 8, 18, 12, 1 |
CAS7440-03-1 |
Neighborhood Elements of Niobium |
Actinium |
89 |
Ac |
227 |
Solid |
Silver |
actinide |
N/A |
7 |
f |
[Rn] 6d1 7s2 |
1050 °C |
3200 °C |
2, 8, 18, 32, 18, 9, 2 |
CAS7440-34-8 |
Neighborhood Elements of Actinium |
History
History |
The element Niobium was discovered by Charles Hatchett in year 1801 in United Kingdom. Niobium derived its name from from Niobe, daughter of king Tantalus from Greek mythology |
The element Actinium was discovered by Friedrich Oskar Giesel in year 1899 in France. Actinium derived its name derived its name from from the Greek aktis, 'ray' |
Presence: Abundance in Nature and Around Us
2×10-7% |
4×10-7% |
1.9e-07 |
1.7e-05 |
1×10-10% |
N/A |
N/A |
None |
N/A |
N/A |
N/A |
None |
Crystal Structure and Atomic Structure
Atomic Radius |
Atomic Volume |
Covalent Radius |
Van der Waals Radius |
Neutron Cross Section |
Atomic Spectrum |
Lattice Constant |
Lattice Angle |
Space Group Name |
Space Group Number |
Crystal Structure |
198 pm |
10.840884480747 cm3 |
137 pm |
N/A |
1.15 |
![]() |
330.04, 330.04, 330.04 pm |
π/2, π/2, π/2 |
Im_ 3m |
229 |
Body Centered Cubic ![]() |
195 pm |
22.542204568024 cm3 |
N/A |
N/A |
810 |
![]() |
567, 567, 567 pm |
π/2, π/2, π/2 |
Fm_ 3m |
225 |
Face Centered Cubic ![]() |
Atomic and Orbital Properties
Atomic Number |
Number of Electrons (with no charge) |
Number of Protons |
Mass Number |
Number of Neutrons |
Shell structure (Electrons per energy level) |
Electron Configuration |
Valence Electrons |
Oxidation State |
Atomic Term Symbol (Quantum Numbers) |
Shell structure |
41 |
41 |
41 |
92.90638 |
51.90638 |
2, 8, 18, 12, 1 |
[Kr] 4d4 5s1 |
4d4 5s1 |
-3;-1 1;2;3;4;5 |
6D1/2 |
![]() |
89 |
89 |
89 |
227 |
138 |
2, 8, 18, 32, 18, 9, 2 |
[Rn] 6d1 7s2 |
6d1 7s2 |
3 |
2D3/2 |
![]() |
Isotopes - Nuclear Properties
Isotopes |
Naturally occurring stable
isotopes: 93Nb. |
Naturally occurring stable
isotopes: None. |
Chemical Properties: Ionization Energies and electron affinity
5 |
1.6 |
86.1 kJ/mol |
652.1, 1380, 2416, 3.7×103, 4877, 9847, 1.21×104 kJ/mol |
3 |
1.1 |
N/A |
499, 1170 kJ/mol |
Physical Properties
Density |
Molar Volume |
Elastic Properties |
Young Modulus |
Shear Modulus |
Bulk Modulus |
Poisson Ratio |
Hardness - Tests to Measure of Hardness of Element |
Mohs Hardness |
Vickers Hardness |
Brinell Hardness |
Electrical Properties |
Electrical Conductivity |
Resistivity |
Superconducting Point |
Heat and Conduction Properties |
Thermal Conductivity |
Thermal Expansion |
Magnetic Properties |
Magnetic Type |
Curie Point |
Mass Magnetic Susceptibility |
Molar Magnetic Susceptibility |
Volume Magnetic Susceptibility |
Optical Properties |
Refractive Index |
Acoustic Properties |
Speed of Sound |
8.57 g/cm3 |
10.840884480747 |
105 GPa |
38 GPa |
170 GPa |
0.4 |
6 MPa |
1320 MPa |
736 MPa |
6.7×106 S/m |
1.5×10-7 m Ω |
9.25 |
54 W/(m K) |
7.3×10-6 K-1 |
Paramagnetic |
N/A |
2.76×10-8 |
2.56×10-9 |
0.000237 |
N/A |
3480 m/s |
10.07 g/cm3 |
22.542204568024 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
12 W/(m K) |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
Thermal Properties - Enthalpies and thermodynamics
2477 °C |
4744 °C |
N/A |
9.25 |
26.8 kJ/mol |
690 kJ/mol |
N/A |
1050 °C |
3200 °C |
N/A |
N/A |
14 kJ/mol |
400 kJ/mol |
N/A |
Regulatory and Health - Health and Safety Parameters and Guidelines
CAS Number |
RTECS Number |
DOT Hazard Class |
DOT Numbers |
EU Number |
NFPA Fire Rating |
NFPA Hazards |
NFPA Health Rating |
NFPA Reactivity Rating |
More |
AutoIgnition Point |
Flashpoint |
CAS7440-03-1 |
RTECSQT9900000 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
CAS7440-34-8 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |