Periodic Table Element Comparison: Compare Elements - Boron vs Neptunium
Compare Boron and Neptunium
Compare Boron and Neptunium 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 Boron vs Neptunium with most reliable information about their properties, attributes, facts, uses etc. You can compare B vs Np 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 |
Boron |
5 |
B |
10.811 |
Solid |
Black |
metalloid |
13 |
boron family |
2 |
p |
[He] 2s2 2p1 |
2075 °C |
4000 °C |
2, 3 |
CAS7440-42-8 |
Neighborhood Elements of Boron |
Neptunium |
93 |
Np |
237 |
Solid |
Silver |
actinide |
N/A |
7 |
f |
[Rn] 5f4 6d1 7s2 |
644 °C |
4×103 °C |
2, 8, 18, 32, 22, 9, 2 |
CAS7439-99-8 |
Neighborhood Elements of Neptunium |
History
History |
The element Boron was discovered by Joseph Louis Gay-Lussac in year 1808 in France and United Kingdom. Boron derived its name from from borax, a mineral |
The element Neptunium was discovered by Edwin McMillan in year 1940 in United States. Neptunium derived its name derived its name from from Neptune, the eighth planet in the Solar System |
Presence: Abundance in Nature and Around Us
1×10-7% |
2×10-7% |
1.6e-06 |
8.6e-06 |
4.4e-06 |
7e-07 |
N/A |
None |
None |
None |
None |
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 |
87 pm |
4.3947154471545 cm3 |
82 pm |
N/A |
755 |
![]() |
506, 506, 506 pm |
1.01334, 1.01334, 1.01334 |
R_ 3m |
166 |
Simple Trigonal ![]() |
175 pm |
11.58924205379 cm3 |
N/A |
N/A |
180 |
![]() |
666.3, 472.3, 488.7 pm |
π/2, π/2, π/2 |
Pnma |
62 |
Simple Orthorhombic ![]() |
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 |
5 |
5 |
5 |
10.811 |
5.811 |
2, 3 |
[He] 2s2 2p1 |
2s2 2p1 |
-5;-1 1;2;3 |
2P1/2 |
![]() |
93 |
93 |
93 |
237 |
144 |
2, 8, 18, 32, 22, 9, 2 |
[Rn] 5f4 6d1 7s2 |
5f4 6d1 7s2 |
2;3;4;5;6;7 |
6L11/2 |
![]() |
Isotopes - Nuclear Properties
Isotopes |
Naturally occurring stable
isotopes: 10B, 11B. |
Naturally occurring stable
isotopes: None. |
Chemical Properties: Ionization Energies and electron affinity
3 |
2.04 |
26.7 kJ/mol |
800.6, 2427.1, 3659.7, 25025.8, 32826.7 kJ/mol |
6 |
1.36 |
N/A |
604.5 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 |
2.46 g/cm3 |
4.3947154471545 |
N/A |
N/A |
320 GPa |
N/A |
9.3 MPa |
4.9×104 MPa |
N/A |
0.0001 S/m |
10000 m Ω |
N/A |
27 W/(m K) |
6×10-6 K-1 |
Diamagnetic |
N/A |
-8.7×10-9 |
-9.41×10-11 |
-2.14e-05 |
N/A |
1.62×104 m/s |
20.45 g/cm3 |
11.58924205379 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
8.3×105 S/m |
1.2×10-6 m Ω |
N/A |
6 W/(m K) |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
Thermal Properties - Enthalpies and thermodynamics
2075 °C |
4000 °C |
N/A |
N/A |
50 kJ/mol |
507 kJ/mol |
N/A |
644 °C |
4×103 °C |
N/A |
N/A |
10 kJ/mol |
335 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 |
CAS7440-42-8 |
RTECSED7350000 |
N/A |
N/A |
N/A |
3 |
N/A |
2 |
0 |
N/A |
N/A |
CAS7439-99-8 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |