;

Periodic Table Element Comparison: Compare Elements - Boron vs Curium

Compare Boron and Curium

Compare Boron 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 Boron vs Curium with most reliable information about their properties, attributes, facts, uses etc. You can compare B vs Cm on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

Facts

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
Curium
96
Cm
247
Solid
Silver
actinide
N/A
 
7
f
[Rn] 5f7 6d1 7s2
1345 °C
3110 °C
2, 8, 18, 32, 25, 9, 2
CAS7440-51-9
Neighborhood Elements of Curium

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 Curium was discovered by Glenn T. Seaborg in year 1944 in United States. Curium derived its name derived its name from from Pierre Curie, a physicist, and Marie Curie, a physicist and chemist, named after great scientists by analogy with gadolinium

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
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

87 pm
4.3947154471545 cm3
82 pm
N/A
755
boron Spectrum
506, 506, 506 pm
1.01334, 1.01334, 1.01334
R_ 3m
166

Simple Trigonal

boron Crystal Structure
N/A
18.282753515914 cm3
N/A
N/A
60
curium Spectrum
349.6, 349.6, 1133.1 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

curium Crystal Structure

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
boron Shells
96
96
96
247
151
2, 8, 18, 32, 25, 9, 2
[Rn] 5f7 6d1 7s2
5f7 6d1 7s2
 3;4;6
9D2
curium Shells

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
4
1.3
N/A
581 kJ/mol

Physical Properties

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
13.51 g/cm3
18.282753515914

 

N/A
N/A
N/A
N/A


 

N/A
N/A
N/A

 

N/A
N/A
N/A

 

N/A
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
1345 °C
3110 °C
N/A
N/A

 

N/A
N/A
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7440-42-8
RTECSED7350000
N/A
N/A
N/A
3
N/A
2
0

 

N/A
N/A
CAS7440-51-9
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A