Home
 Compare Metals

Mendelevium Yttrium Comparison

Mendelevium
Yttrium
Yttrium Mendelevium comparison


Periodic Table
Symbol
Md  
Y  
Group Number
3  
15
3  
15
Period Number
7  
5  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440111  
99+
7440655  
25
Space Group Name
-  
P63/mmc  
Space Group Number
194.00  
7
194.00  
7
Facts
Interesting Facts
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
  
Sources
Bombarding Einsteinium with Helium Ions  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory  
Johan Gadolin  
Discovery
In 1955  
In 1794  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
18
Abundance In Sun
-  
0.00 %  
26
Abundance In Meteorites
0.00 %  
99+
0.00 %  
21
Abundance In Earth's Crust
-  
0.00 %  
22
Abundance In Oceans
-  
0.00 %  
25
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • Currently known uses of Mendelevium metal are limited to research purpose only.
  
  • Yttrium metal is used in different alloys, as it increases the strength of aluminum Magnesium alloy. It is used for radar microwave filter.
  • It is also used as a catalyst in ethene polymerisation.
  
Industrial Uses
-  
Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
-  
Alloys  
Biological Properties
  
  
Toxicity
-  
Highly Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
26
In Bone
0.00 p.p.m.  
99+
0.07 p.p.m.  
30
Physical
Melting Point
827.00 °C  
99+
1,523.00 °C  
27
Boiling Point
0.00 °C  
99+
3,337.00 °C  
22
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
Silvery White  
Luster
Metallic  
-  
Hardness
  
  
Mohs Hardness
-  
4.00  
11
Brinell Hardness
350.00 MPa  
36
589.00 MPa  
26
Vickers Hardness
0.00 MPa  
99+
590.00 MPa  
29
Speed of Sound
2,680.00 m/s  
99+
3,300.00 m/s  
34
Optical Properties
  
  
Refractive Index
1.30  
99+
1.90  
18
Reflectivity
66.00 %  
17
83.00 %  
6
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Md  
Y  
Isotopes
  
  
Known Isotopes
16  
23
19  
20
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
1.22  
39
Sanderson Electronegativity
1.30  
25
0.65  
99+
Allred Rochow Electronegativity
1.20  
28
1.11  
30
Mulliken-Jaffe Electronegativity
1.30  
33
1.22  
38
Allen Electronegativity
1.30  
40
1.12  
99+
Electropositivity
  
  
Pauling Electropositivity
2.70  
22
2.78  
16
Ionization Energies
  
  
1st Energy Level
635.00 kJ/mol  
99+
600.00 kJ/mol  
99+
2nd Energy Level
1,235.00 kJ/mol  
99+
1,180.00 kJ/mol  
99+
3rd Energy Level
2,470.00 kJ/mol  
99+
1,980.00 kJ/mol  
99+
4th Energy Level
3,840.00 kJ/mol  
99+
5,847.00 kJ/mol  
19
5th Energy Level
6,350.00 kJ/mol  
36
7,430.00 kJ/mol  
22
6th Energy Level
6,350.00 kJ/mol  
99+
8,970.00 kJ/mol  
23
7th Energy level
6,350.00 kJ/mol  
99+
11,190.00 kJ/mol  
18
8th Energy Level
6,350.00 kJ/mol  
99+
12,450.00 kJ/mol  
18
9th Energy Level
6,350.00 kJ/mol  
99+
14,110.00 kJ/mol  
19
10th Energy Level
6,350.00 kJ/mol  
99+
18,400.00 kJ/mol  
17
11th Energy Level
6,400.00 kJ/mol  
99+
19,900.00 kJ/mol  
18
12th Energy Level
60,100.00 kJ/mol  
16
36,090.00 kJ/mol  
25
13th Energy Level
6,350.00 kJ/mol  
37
6,000.00 kJ/mol  
99+
14th Energy Level
1,150.00 kJ/mol  
99+
6,000.00 kJ/mol  
33
15th Energy Level
63,500.00 kJ/mol  
37
60,000.00 kJ/mol  
99+
16th Energy Level
635.00 kJ/mol  
99+
60,000.00 kJ/mol  
34
17th Energy Level
1,107.00 kJ/mol  
21
600.00 kJ/mol  
99+
18th Energy Level
6,350.00 kJ/mol  
39
6,000.00 kJ/mol  
99+
19th Energy Level
635.00 kJ/mol  
99+
600.00 kJ/mol  
99+
20th Energy Level
635.00 kJ/mol  
40
600.00 kJ/mol  
99+
21st Energy Level
6,350.00 kJ/mol  
13
600.00 kJ/mol  
99+
22nd Energy Level
635.00 kJ/mol  
34
600.00 kJ/mol  
99+
23rd Energy Level
6,350.00 kJ/mol  
13
600.00 kJ/mol  
99+
24th Energy Level
635.00 kJ/mol  
36
600.00 kJ/mol  
99+
25th Energy Level
635.00 kJ/mol  
38
600.00 kJ/mol  
99+
26th Energy Level
635.00 kJ/mol  
37
604.50 kJ/mol  
99+
27th Energy Level
635.00 kJ/mol  
39
604.50 kJ/mol  
99+
28th Energy Level
635.00 kJ/mol  
99+
604.50 kJ/mol  
99+
29th Energy Level
635.00 kJ/mol  
99+
604.50 kJ/mol  
99+
30th Energy Level
635.00 kJ/mol  
40
604.50 kJ/mol  
99+
Electrochemical Equivalent
3.21 g/amp-hr  
13
1.11 g/amp-hr  
99+
Electron Work Function
3.89 eV  
37
3.10 eV  
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
101  
17
39  
99+
Electron Configuration
[Rn] 5f13 7s2  
[Kr] 4d1 5s2  
Crystal Structure
Not Known  
Hexagonal Close Packed (HCP)  
Crystal Lattice
Unknown-Crystal-Structure-of-Mendelevium.jpg#100  
HCP-Crystal-Structure-of-Yttrium.jpg#100  
Atom
  
  
Number of Protons
101  
17
39  
99+
Number of Neutrons
157  
8
50  
99+
Number of Electrons
101  
17
39  
99+
Radius of an Atom
  
  
Atomic Radius
175.00 pm  
21
180.00 pm  
16
Covalent Radius
175.00 pm  
25
190.00 pm  
18
Van der Waals Radius
246.00 pm  
12
200.00 pm  
35
Atomic Weight
258.00 amu  
14
88.91 amu  
99+
Atomic Volume
19.90 cm3/mol  
32
19.80 cm3/mol  
33
Adjacent Atomic Numbers
  
  
Previous Element
Fermium
  
Strontium
  
Next Element
Nobelium
  
Zirconium
  
Valence Electron Potential
63.70 (-eV)  
23
48.00 (-eV)  
31
Lattice Constant
-  
364.74 pm  
34
Lattice Angles
-  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.58  
36
1.57  
39
Mechanical
Density
  
  
Density At Room Temperature
10.30 g/cm3  
38
4.47 g/cm3  
99+
Density When Liquid (at m.p.)
10.30 g/cm3  
39
4.24 g/cm3  
99+
Tensile Strength
80.00 MPa  
29
160.00 MPa  
22
Viscosity
0.00  
25
0.00  
18
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
34
Vapor Pressure at 2000 K
0.00 (Pa)  
37
4.27 (Pa)  
10
Elasticity properties
  
  
Shear Modulus
32.00 GPa  
24
25.60 GPa  
37
Bulk Modulus
0.00 GPa  
99+
41.20 GPa  
35
Young's Modulus
12.00 GPa  
99+
63.50 GPa  
34
Poisson Ratio
0.30  
14
0.24  
26
Other Mechanical Properties
-  
Ductile  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
13.50  
29
4.47  
99+
Magnetic Ordering
-  
Paramagnetic  
Permeability
0.00 H/m  
11
0.00 H/m  
18
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
0.63 nΩ·m  
99+
596.00 nΩ·m  
8
Electrical Conductivity
0.00 106/cm Ω  
99+
0.02 106/cm Ω  
99+
Electron Affinity
50.00 kJ/mol  
26
29.60 kJ/mol  
36
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.30 J/(kg K)  
18
Molar Heat Capacity
27.00 J/mol·K  
29
26.53 J/mol·K  
35
Thermal Conductivity
0.00 W/m·K  
99+
17.20 W/m·K  
99+
Critical Temperature
1,100.00 K  
99+
1,799.00 K  
31
Thermal Expansion
11.60 µm/(m·K)  
99+
10.60 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
380.50 kJ/mol  
26
393.00 kJ/mol  
25
Enthalpy of Fusion
-  
17.15 kJ/mol  
16
Enthalpy of Atomization
410.80 kJ/mol  
25
418.00 kJ/mol  
23
Standard Molar Entropy
37.40 J/mol.K  
99+
44.40 J/mol.K  
99+
Summary >>
<< Thermal

Compare Actinide Series

Actinide Series

Actinide Series

» More Actinide Series

Compare Actinide Series

» More Compare Actinide Series
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!