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Yttrium vs Strontium

Yttrium
Strontium
Strontium vs Yttrium


Periodic Table
Symbol
Y   
Sr   
Group Number
3   
15
2   
16
Period Number
5   
5   
Block
d block   
s block   
Element Family
Transition Metal   
Alkaline Earth   
CAS Number
7440655   
25
7440246   
99+
Space Group Name
P63/mmc   
Fm_ 3m   
Space Group Number
194.00   
5
225.00   
2
Facts
Interesting Facts
  • Yttrium Metal is highly toxic.
  • Yttrium Metal is highly reactive in nature hence not found free in nature.
  
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  
Sources
Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Johan Gadolin   
William Cruickshank   
Discovery
In 1794   
In 1787   
Abundance
  
  
Abundance In Universe
7 * 10-7 %   
17
4 * 10-6 %   
14
Abundance In Sun
~0.0000001 %   
26
~0.000005 %   
15
Abundance In Meteorites
0.00 %   
21
0.00 %   
15
Abundance In Earth's Crust
0.00 %   
22
0.04 %   
10
Abundance In Oceans
0.00 %   
25
0.00 %   
4
Abundance In Humans
Not Available   
0.00 %   
7
Uses
Uses & Benefits
  • 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.
  
  • Strontium metal is used to producing ferrite magnets as well as refining zinc.
  • By-product of nuclear reactors called Strontium-90 is a radioactive isotope; it is absorbed by tissues and destroys bone marrow and cancer growth.
  
Industrial Uses
Electrical Industry, Electronic Industry   
Ammunition Industry, Chemical Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Alloys   
Biological Properties
  
  
Toxicity
Highly Toxic   
Non Toxic   
Present in Human Body
Yes   
Yes   
In Blood
0.00 Blood/mg dm-3   
26
0.03 Blood/mg dm-3   
19
In Bone
0.07 p.p.m.   
25
140.00 p.p.m.   
7
Physical Properties
Melting Point
1,523.00 °C   
27
769.00 °C   
99+
Boiling Point
3,337.00 °C   
21
1,384.00 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery White   
Luster
NA   
Metallic   
Hardness
  
  
Mohs Hardness
Not Available   
1.50   
18
Brinell Hardness
589.00 MPa   
22
Not Available   
Speed of Sound
3,300.00 m/s   
23
Not Available   
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
Y   
Sr   
Isotopes
  
  
Known Isotopes
19   
20
27   
12
Electronegativity
  
  
Pauling Electronegativity
1.22   
38
0.95   
99+
Sanderson Electronegativity
0.65   
29
0.72   
27
Allred Rochow Electronegativity
1.11   
29
0.99   
37
Mulliken-Jaffe Electronegativity
Not Available   
1.00   
18
Allen Electronegativity
1.12   
38
0.96   
40
Electropositivity
  
  
Pauling Electropositivity
2.78   
16
3.05   
7
Ionization Energies
  
  
1st Energy Level
600.00 kJ/mol   
99+
549.50 kJ/mol   
99+
2nd Energy Level
1,180.00 kJ/mol   
99+
1,064.20 kJ/mol   
99+
3rd Energy Level
1,980.00 kJ/mol   
99+
4,138.00 kJ/mol   
10
4th Energy Level
5,847.00 kJ/mol   
10
5,500.00 kJ/mol   
13
5th Energy Level
7,430.00 kJ/mol   
14
6,910.00 kJ/mol   
18
6th Energy Level
8,970.00 kJ/mol   
17
8,760.00 kJ/mol   
18
7th Energy level
11,190.00 kJ/mol   
18
10,230.00 kJ/mol   
19
8th Energy Level
12,450.00 kJ/mol   
18
11,800.00 kJ/mol   
19
9th Energy Level
14,110.00 kJ/mol   
19
15,600.00 kJ/mol   
17
10th Energy Level
18,400.00 kJ/mol   
17
17,100.00 kJ/mol   
19
11th Energy Level
19,900.00 kJ/mol   
18
31,270.00 kJ/mol   
6
12th Energy Level
36,090.00 kJ/mol   
5
Not Available   
Electrochemical Equivalent
1.11 g/amp-hr   
99+
1.64 g/amp-hr   
99+
Electron Work Function
3.10 eV   
35
2.59 eV   
99+
Other Chemical Properties
Chemical Stability, Flammable, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Atomic Properties
Atomic Number
39   
99+
38   
99+
Electron Configuration
[Kr] 4d1 5s2   
[Kr] 5s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Yttrium.jpg#100   
FCC-Crystal-Structure-of-Strontium.jpg#100   
Atom
  
  
Number of Protons
39   
99+
38   
99+
Number of Neutrons
50   
99+
50   
99+
Number of Electrons
39   
99+
38   
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
215.00 pm   
5
Covalent Radius
190.00 pm   
18
195.00 pm   
15
Van der Waals Radius
200.00 pm   
28
249.00 pm   
7
Atomic Weight
88.91 amu   
99+
87.62 amu   
99+
Atomic Volume
19.80 cm3/mol   
21
33.70 cm3/mol   
6
Adjacent Atomic Numbers
  
  
Previous Element
Strontium
  
Rubidium
  
Next Element
Zirconium
  
Yttrium
  
Valence Electron Potential
48.00 (-eV)   
30
25.70 (-eV)   
99+
Lattice Constant
364.74 pm   
31
608.49 pm   
6
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.57   
16
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
4.47 g/cm3   
99+
2.64 g/cm3   
99+
Density When Liquid (at m.p.)
4.24 g/cm3   
99+
2.38 g/cm3   
99+
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)   
32
121.00 (Pa)   
1
Vapor Pressure at 2000 K
4.27 (Pa)   
10
Not Available   
Elasticity properties
  
  
Shear Modulus
25.60 GPa   
30
6.03 GPa   
99+
Bulk Modulus
41.20 GPa   
30
Not Available   
Young's Modulus
63.50 GPa   
32
15.70 GPa   
99+
Poisson Ratio
0.24   
26
0.28   
17
Other Mechanical Properties
Ductile   
NA   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
4.47   
99+
2.64   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
NA   
Resistivity
596.00 nΩ·m   
8
132.00 nΩ·m   
24
Electrical Conductivity
0.02 106/cm Ω   
99+
0.08 106/cm Ω   
26
Electron Affinity
29.60 kJ/mol   
30
5.03 kJ/mol   
38
Thermal Properties
Specific Heat
0.30 J/(kg K)   
18
0.30 J/(kg K)   
18
Molar Heat Capacity
26.53 J/mol·K   
27
26.40 J/mol·K   
28
Thermal Conductivity
17.20 W/m·K   
99+
35.40 W/m·K   
37
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
10.60 µm/(m·K)   
37
22.50 µm/(m·K)   
18
Enthalpy
  
  
Enthalpy of Vaporization
393.00 kJ/mol   
18
150.00 kJ/mol   
99+
Enthalpy of Fusion
17.15 kJ/mol   
16
9.16 kJ/mol   
38
Enthalpy of Atomization
418.00 kJ/mol   
18
163.20 kJ/mol   
99+
Standard Molar Entropy
44.40 J/mol.K   
33
55.00 J/mol.K   
26
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