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Radium Dysprosium Comparison

Radium
Dysprosium
Dysprosium Radium comparison


Periodic Table
Symbol
Ra   
Dy   
Group Number
2   
16
Not Available   
Period Number
7   
6   
Block
s block   
f block   
Element Family
Alkaline Earth   
Lanthanide   
CAS Number
7440144   
99+
7429916   
99+
Space Group Name
Im_ 3m   
P63/mmc   
Space Group Number
229.00   
1
194.00   
5
Facts
Interesting Facts
  • Radium metal is the heaviest metal of Alkaline earth metals column.
  • Radium metal is highly radioactive and does not have any stable isotopes.
  
  • Dysprosium acts stable in air at room temperature.
  • Dysprosium behaves very much like paramagnetic metal.
  
Sources
Mining, Ores of metals   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Not Available   
Lecoq de Boisbaudran   
Discovery
In 1898   
In 1886   
Abundance
  
  
Abundance In Universe
Not Available   
2 * 10-7 %   
22
Abundance In Sun
~-9999 %   
~0.0000002 %   
25
Abundance In Meteorites
Not Available   
0.00 %   
33
Abundance In Earth's Crust
0.00 %   
99+
0.00 %   
28
Abundance In Oceans
0.00 %   
99+
0.00 %   
35
Abundance In Humans
0.00 %   
20
Not Available   
Uses
Uses & Benefits
  • It is a highly radioactive metal; and sometime Radium-223 is used to treat prostate cancer.
  • It is used in luminous paints.
  
  • Dysprosium metal is highly reactive due to which it pure form is not as usual as its alloy.
  • Thi metals alloy is used in magnate as it is resistance to high temperature.
  
Industrial Uses
NA   
NA   
Medical Uses
Pharmaceutical Industry   
NA   
Other Uses
NA   
Alloys, Nuclear Research   
Biological Properties
  
  
Toxicity
Highly Toxic   
Mildly Toxic   
Present in Human Body
No   
No   
Physical Properties
Melting Point
700.00 °C   
99+
1,407.00 °C   
32
Boiling Point
1,737.00 °C   
99+
2,562.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery White   
Luster
Metallic   
Metallic   
Hardness
  
  
Brinell Hardness
Not Available   
500.00 MPa   
23
Vickers Hardness
Not Available   
540.00 MPa   
20
Speed of Sound
Not Available   
2,710.00 m/s   
33
Optical Properties
  
  
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Ra   
Dy   
Isotopes
  
  
Known Isotopes
33   
6
29   
10
Electronegativity
  
  
Pauling Electronegativity
0.90   
99+
1.22   
38
Allred Rochow Electronegativity
0.97   
38
1.10   
30
Mulliken-Jaffe Electronegativity
0.92   
20
Not Available   
Allen Electronegativity
0.89   
99+
Not Available   
Electropositivity
  
  
Pauling Electropositivity
3.10   
5
2.78   
16
Ionization Energies
  
  
1st Energy Level
509.30 kJ/mol   
99+
573.00 kJ/mol   
99+
2nd Energy Level
979.00 kJ/mol   
99+
1,130.00 kJ/mol   
99+
3rd Energy Level
Not Available   
2,200.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,990.00 kJ/mol   
37
Electrochemical Equivalent
4.22 g/amp-hr   
6
2.02 g/amp-hr   
29
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
88   
30
66   
99+
Electron Configuration
[Rn] 7s2   
[Xe] 4f9 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Dysprosium.jpg#100   
Atom
  
  
Number of Protons
88   
30
66   
99+
Number of Neutrons
138   
16
96   
35
Number of Electrons
88   
30
66   
99+
Radius of an Atom
  
  
Atomic Radius
Not Available   
178.00 pm   
16
Covalent Radius
221.00 pm   
3
192.00 pm   
17
Van der Waals Radius
283.00 pm   
4
229.00 pm   
20
Atomic Weight
226.00 amu   
26
162.50 amu   
99+
Atomic Volume
45.20 cm3/mol   
4
19.00 cm3/mol   
23
Adjacent Atomic Numbers
  
  
Previous Element
Francium
  
Terbium
  
Next Element
Actinium
  
Holmium
  
Valence Electron Potential
20.10 (-eV)   
99+
47.40 (-eV)   
32
Lattice Constant
514.80 pm   
13
359.30 pm   
37
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.57   
15
Mechanical Properties
Density
  
  
Density At Room Temperature
5.50 g/cm3   
99+
8.54 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
8.37 g/cm3   
25
Tensile Strength
Not Available   
120.00 MPa   
15
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Elasticity properties
  
  
Shear Modulus
Not Available   
24.70 GPa   
31
Bulk Modulus
Not Available   
40.50 GPa   
31
Young's Modulus
Not Available   
61.40 GPa   
33
Poisson Ratio
Not Available   
0.25   
25
Other Mechanical Properties
NA   
Sectile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
5.00   
99+
8.55   
38
Magnetic Ordering
Nonmagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
NA   
Conductor   
Resistivity
100.00 nΩ·m   
31
926.00 nΩ·m   
2
Electrical Conductivity
Not Available   
0.01 106/cm Ω   
99+
Electron Affinity
Not Available   
50.00 kJ/mol   
21
Thermal Properties
Specific Heat
0.12 J/(kg K)   
40
0.17 J/(kg K)   
34
Molar Heat Capacity
Not Available   
27.70 J/mol·K   
14
Thermal Conductivity
18.60 W/m·K   
99+
10.70 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
Not Available   
9.90 µm/(m·K)   
40
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
230.00 kJ/mol   
39
Enthalpy of Fusion
Not Available   
11.05 kJ/mol   
32
Enthalpy of Atomization
163.00 kJ/mol   
99+
301.00 kJ/mol   
36
Standard Molar Entropy
71.00 J/mol.K   
14
75.60 J/mol.K   
7
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