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Periodic Table Element Comparison: Compare Elements - Magnesium vs Samarium

Compare Magnesium and Samarium

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

Facts

Magnesium
12
Mg
24.305
Solid
Silver
alkaline earth metal
2
beryllium family 
3
s
[Ne] 3s2
650 °C
1090 °C
2, 8, 2
CAS7439-95-4
Neighborhood Elements of Magnesium
Samarium
62
Sm
150.36
Solid
Silver
lanthanide
N/A
 
6
f
[Xe] 4f6 6s2
1072 °C
1803 °C
2, 8, 18, 24, 8, 2
CAS7440-19-9
Neighborhood Elements of Samarium

History

History
The element Magnesium was discovered by Joseph Black in year 1755 in United Kingdom. Magnesium derived its name from from Magnesia, a district of Eastern Thessaly in Greece
The element Samarium was discovered by Lecoq de Boisbaudran in year 1879 in France. Samarium derived its name derived its name from from Samarskite, the name of the mineral from which it was first isolated

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
0.0006
0.0007
0.12
0.029
0.0013
0.00027
5×10-7%
1×10-7%
1.7e-07
6e-06
4.5×10-11%
N/A

Crystal Structure and Atomic Structure

145 pm
13.984464902186 cm3
130 pm
173 pm
0.063
magnesium Spectrum
320.94, 320.94, 521.08 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

magnesium Crystal Structure
238 pm
20.448796409629 cm3
N/A
N/A
5.9×103
samarium Spectrum
362.1, 362.1, 2625 pm
π/2, π/2, 2 π/3
R_ 3m
166

Simple Trigonal

samarium 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
12
12
12
24.305
12.305
2, 8, 2
[Ne] 3s2
3s2
 1;2
1S0
magnesium Shells
62
62
62
150.36
88.36
2, 8, 18, 24, 8, 2
[Xe] 4f6 6s2
4f6 6s2
 2;3
7F0
samarium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
24Mg, 25Mg, 26Mg.
Naturally occurring stable isotopes:
144Sm, 149Sm, 150Sm, 152Sm, 154Sm.

Chemical Properties: Ionization Energies and electron affinity

2
1.31
0 kJ/mol
737.7, 1450.7, 7732.7, 10542.5, 13630, 18020, 21711, 25661, 31653, 35458 kJ/mol
3
1.17
50 kJ/mol
544.5, 1070, 2260, 3990 kJ/mol

Physical Properties

1.738 g/cm3
13.984464902186

 

45 GPa
17 GPa
45 GPa
0.29


 

2.5 MPa
N/A
260 MPa

 

2.3×107 S/m
4.4×10-8 m Ω
N/A

 

160 W/(m K)
8.2×10-6 K-1

 

Paramagnetic
N/A
6.9×10-9
1.68×10-10
1.2e-05

 

N/A

 

4602 m/s
7.353 g/cm3
20.448796409629

 

50 GPa
20 GPa
38 GPa
0.27


 

N/A
412 MPa
441 MPa

 

1.1×106 S/m
9.4×10-7 m Ω
N/A

 

13 W/(m K)
0.0000127 K-1

 

Paramagnetic
N/A
1.11×10-7
1.669×10-8
0.00081618

 

N/A

 

2130 m/s

Thermal Properties - Enthalpies and thermodynamics

650 °C
1090 °C
N/A
N/A

 

8.7 kJ/mol
128 kJ/mol
-668 J/(kg K)
1072 °C
1803 °C
N/A
N/A

 

8.6 kJ/mol
175 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7439-95-4
N/A
4.1
2950
N/A
1
N/A
0
1

 

472 °C
500 °C
CAS7440-19-9
N/A
4.1
1325
N/A
1
N/A
1
1

 

150 °C
N/A