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Barium vs Yttrium

Barium
Yttrium
Yttrium vs Barium


Periodic Table
Symbol
Ba   
Y   
Group Number
2   
16
3   
15
Period Number
6   
5   
Block
s block   
d block   
Element Family
Alkaline Earth   
Transition Metal   
CAS Number
7440393   
99+
7440655   
25
Space Group Name
Im_ 3m   
P63/mmc   
Space Group Number
229.00   
1
194.00   
5
Facts
Interesting Facts
  • Barium oxidizes very easily in the air.
  • All toxic compounds of Barium can easily dissolve in water.
  • Barium carbonate is used to produce a Rat poison and its other compound Barium nitrate is used in fireworks to produce green color.
  
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
  
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Carl Wilhelm Scheele   
Johan Gadolin   
Discovery
In 1772   
In 1794   
Abundance
  
  
Abundance In Universe
1 * 10-6 %   
16
7 * 10-7 %   
17
Abundance In Sun
~0.000001 %   
18
~0.0000001 %   
26
Abundance In Meteorites
0.00 %   
20
0.00 %   
21
Abundance In Earth's Crust
0.03 %   
11
0.00 %   
22
Abundance In Oceans
0.00 %   
8
0.00 %   
25
Abundance In Humans
0.00 %   
12
Not Available   
Uses
Uses & Benefits
  • It is sued in chemical paint manufacturing and glass manufacturing.
  • Compounds of this metal are toxic; but still the barium sulfate is insoluble and given to patients suffering from digestive disorder.
  
  • 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
Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry   
Electrical Industry, Electronic Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Alloys   
Biological Properties
  
  
Toxicity
Low Toxic   
Highly Toxic   
Present in Human Body
Yes   
Yes   
In Blood
0.07 Blood/mg dm-3   
15
0.00 Blood/mg dm-3   
26
In Bone
70.00 p.p.m.   
9
0.07 p.p.m.   
25
Physical Properties
Melting Point
725.00 °C   
99+
1,523.00 °C   
27
Boiling Point
1,140.00 °C   
99+
3,337.00 °C   
21
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery Gray   
Silvery White   
Luster
NA   
NA   
Hardness
  
  
Mohs Hardness
1.25   
19
Not Available   
Brinell Hardness
Not Available   
589.00 MPa   
22
Speed of Sound
1,620.00 m/s   
99+
3,300.00 m/s   
23
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
Ba   
Y   
Isotopes
  
  
Known Isotopes
37   
2
19   
20
Electronegativity
  
  
Pauling Electronegativity
0.89   
99+
1.22   
38
Sanderson Electronegativity
0.68   
28
0.65   
29
Allred Rochow Electronegativity
0.97   
38
1.11   
29
Mulliken-Jaffe Electronegativity
0.88   
22
Not Available   
Allen Electronegativity
0.88   
99+
1.12   
38
Electropositivity
  
  
Pauling Electropositivity
3.11   
4
2.78   
16
Ionization Energies
  
  
1st Energy Level
502.90 kJ/mol   
99+
600.00 kJ/mol   
99+
2nd Energy Level
965.20 kJ/mol   
99+
1,180.00 kJ/mol   
99+
3rd Energy Level
3,600.00 kJ/mol   
14
1,980.00 kJ/mol   
99+
4th Energy Level
Not Available   
5,847.00 kJ/mol   
10
5th Energy Level
Not Available   
7,430.00 kJ/mol   
14
6th Energy Level
Not Available   
8,970.00 kJ/mol   
17
7th Energy level
Not Available   
11,190.00 kJ/mol   
18
8th Energy Level
Not Available   
12,450.00 kJ/mol   
18
9th Energy Level
Not Available   
14,110.00 kJ/mol   
19
10th Energy Level
Not Available   
18,400.00 kJ/mol   
17
11th Energy Level
Not Available   
19,900.00 kJ/mol   
18
12th Energy Level
Not Available   
36,090.00 kJ/mol   
5
Electrochemical Equivalent
2.56 g/amp-hr   
20
1.11 g/amp-hr   
99+
Electron Work Function
2.70 eV   
99+
3.10 eV   
35
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
56   
99+
39   
99+
Electron Configuration
[Xe] 6s2   
[Kr] 4d1 5s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Yttrium.jpg#100   
Atom
  
  
Number of Protons
56   
99+
39   
99+
Number of Neutrons
81   
99+
50   
99+
Number of Electrons
56   
99+
39   
99+
Radius of an Atom
  
  
Atomic Radius
222.00 pm   
4
180.00 pm   
14
Covalent Radius
215.00 pm   
5
190.00 pm   
18
Van der Waals Radius
268.00 pm   
6
200.00 pm   
28
Atomic Weight
137.33 amu   
99+
88.91 amu   
99+
Atomic Volume
39.24 cm3/mol   
5
19.80 cm3/mol   
21
Adjacent Atomic Numbers
  
  
Previous Element
Cesium
  
Strontium
  
Next Element
Lanthanum
  
Zirconium
  
Valence Electron Potential
21.30 (-eV)   
99+
48.00 (-eV)   
30
Lattice Constant
502.80 pm   
15
364.74 pm   
31
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.57   
16
Mechanical Properties
Density
  
  
Density At Room Temperature
3.51 g/cm3   
99+
4.47 g/cm3   
99+
Density When Liquid (at m.p.)
3.34 g/cm3   
99+
4.24 g/cm3   
99+
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
7.11 (Pa)   
6
0.00 (Pa)   
32
Vapor Pressure at 2000 K
Not Available   
4.27 (Pa)   
10
Elasticity properties
  
  
Shear Modulus
4.90 GPa   
99+
25.60 GPa   
30
Bulk Modulus
9.60 GPa   
99+
41.20 GPa   
30
Young's Modulus
13.00 GPa   
99+
63.50 GPa   
32
Poisson Ratio
Not Available   
0.24   
26
Other Mechanical Properties
NA   
Ductile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
3.62   
99+
4.47   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Superconductor   
Conductor   
Resistivity
332.00 nΩ·m   
13
596.00 nΩ·m   
8
Electrical Conductivity
0.03 106/cm Ω   
40
0.02 106/cm Ω   
99+
Electron Affinity
13.95 kJ/mol   
36
29.60 kJ/mol   
30
Thermal Properties
Specific Heat
0.20 J/(kg K)   
30
0.30 J/(kg K)   
18
Molar Heat Capacity
28.07 J/mol·K   
12
26.53 J/mol·K   
27
Thermal Conductivity
18.40 W/m·K   
99+
17.20 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
20.60 µm/(m·K)   
22
10.60 µm/(m·K)   
37
Enthalpy
  
  
Enthalpy of Vaporization
140.00 kJ/mol   
99+
393.00 kJ/mol   
18
Enthalpy of Fusion
7.66 kJ/mol   
99+
17.15 kJ/mol   
16
Enthalpy of Atomization
175.70 kJ/mol   
99+
418.00 kJ/mol   
18
Standard Molar Entropy
62.50 J/mol.K   
20
44.40 J/mol.K   
33
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