Tin vs Strontium
Periodic Table
Symbol
Sn
Sr
Group Number
14
4
2
16
Period Number
5
5
Block
p block
s block
Element Family
Post-Transition
Alkaline Earth
CAS Number
7440315
99+
7440246
99+
Space Group Name
I41/amd
Fm_ 3m
Space Group Number
141.00
7
225.00
2
Facts
Interesting Facts
- In the list of most abundant element Tin is ranked 49th.
- Tin metal does not react with water as well as does not corrode in it.
- Strontium element is softer than Calcium.
- Silvery Strontium turns yellow, if exposed to air.
Sources
Found in Minerals, Mining
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
Unknown
William Cruickshank
Discovery
Before 3500 BC
In 1787
Abundance
Abundance In Universe
4 * 10-7 %
20
4 * 10-6 %
14
Abundance In Sun
~0.0000009 %
19
~0.000005 %
15
Abundance In Meteorites
0.00 %
24
0.00 %
15
Abundance In Earth's Crust
0.00 %
34
0.04 %
10
Abundance In Oceans
0.00 %
26
0.00 %
4
Abundance In Humans
0.00 %
13
0.00 %
7
Uses
Uses & Benefits
- Tin-niobium alloy is used for producing superconducting magnets.
- Tin salt known as a tin II chloride, it is used as a mordant and as a reducing agent for dyeing calico and silk.
- 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
Automobile Industry, Chemical Industry, Food Industry
Ammunition Industry, Chemical Industry
Medical Uses
Dentistry
NA
Other Uses
NA
Alloys
Biological Properties
Toxicity
Non Toxic
Non Toxic
Present in Human Body
Yes
Yes
In Blood
0.38 Blood/mg dm-3
10
0.03 Blood/mg dm-3
19
In Bone
1.40 p.p.m.
16
140.00 p.p.m.
7
Physical Properties
Melting Point
231.90 °C
99+
769.00 °C
99+
Boiling Point
2,270.00 °C
99+
1,384.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Silvery White
Silvery White
Luster
NA
Metallic
Hardness
Mohs Hardness
1.50
18
1.50
18
Brinell Hardness
50.00 MPa
99+
Not Available
Speed of Sound
2,730.00 m/s
32
Not Available
Optical Properties
Allotropes
Yes
No
α Allotropes
Grey Tin (alpha Tin, Tin Pest)
Not Available
β Allotropes
White Tin (Beta Tin)
Not Available
γ Allotropes
Rhombic Tin (gamma Tin)
Not Available
Chemical Properties
Chemical Formula
Sn
Sr
Isotopes
Known Isotopes
35
4
27
12
Electronegativity
Pauling Electronegativity
1.96
8
0.95
99+
Sanderson Electronegativity
1.49
15
0.72
27
Allred Rochow Electronegativity
1.72
4
0.99
37
Mulliken-Jaffe Electronegativity
2.21
3
1.00
18
Allen Electronegativity
1.82
11
0.96
40
Electropositivity
Pauling Electropositivity
2.04
99+
3.05
7
Ionization Energies
1st Energy Level
708.60 kJ/mol
33
549.50 kJ/mol
99+
2nd Energy Level
1,411.80 kJ/mol
99+
1,064.20 kJ/mol
99+
3rd Energy Level
2,943.00 kJ/mol
30
4,138.00 kJ/mol
10
4th Energy Level
3,930.30 kJ/mol
99+
5,500.00 kJ/mol
13
5th Energy Level
7,456.00 kJ/mol
13
6,910.00 kJ/mol
18
6th Energy Level
Not Available
8,760.00 kJ/mol
18
7th Energy level
Not Available
10,230.00 kJ/mol
19
8th Energy Level
Not Available
11,800.00 kJ/mol
19
9th Energy Level
Not Available
15,600.00 kJ/mol
17
10th Energy Level
Not Available
17,100.00 kJ/mol
19
11th Energy Level
Not Available
31,270.00 kJ/mol
6
Electrochemical Equivalent
1.11 g/amp-hr
99+
1.64 g/amp-hr
99+
Electron Work Function
4.42 eV
16
2.59 eV
99+
Other Chemical Properties
Ionization, Solubility
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Atomic Properties
Atomic Number
50
99+
38
99+
Electron Configuration
[Kr] 4d10 5s2 5p2
[Kr] 5s2
Crystal Structure
Tetragonal (TETR)
Face Centered Cubic (FCC)
Crystal Lattice
TETR-Crystal-Structure-of-Tin.jpg#100
FCC-Crystal-Structure-of-Strontium.jpg#100
Atom
Number of Protons
50
99+
38
99+
Number of Neutrons
69
99+
50
99+
Number of Electrons
50
99+
38
99+
Radius of an Atom
Atomic Radius
140.00 pm
38
215.00 pm
5
Covalent Radius
139.00 pm
99+
195.00 pm
15
Van der Waals Radius
217.00 pm
23
249.00 pm
7
Atomic Weight
118.71 amu
99+
87.62 amu
99+
Atomic Volume
16.30 cm3/mol
32
33.70 cm3/mol
6
Adjacent Atomic Numbers
Valence Electron Potential
83.50 (-eV)
14
25.70 (-eV)
99+
Lattice Constant
583.18 pm
7
608.49 pm
6
Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
Mechanical Properties
Density
Density At Room Temperature
7.37 g/cm3
99+
2.64 g/cm3
99+
Density When Liquid (at m.p.)
6.99 g/cm3
34
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)
17
121.00 (Pa)
1
Elasticity properties
Shear Modulus
18.00 GPa
36
6.03 GPa
99+
Bulk Modulus
58.00 GPa
20
Not Available
Young's Modulus
50.00 GPa
36
15.70 GPa
99+
Poisson Ratio
0.36
8
0.28
17
Other Mechanical Properties
Ductile, Malleable
NA
Magnetic Properties
Magnetic Characteristics
Specific Gravity
7.31
99+
2.64
99+
Magnetic Ordering
Diamagnetic
Paramagnetic
Electrical Properties
Electrical Property
Superconductor
NA
Resistivity
115.00 nΩ·m
28
132.00 nΩ·m
24
Electrical Conductivity
0.09 106/cm Ω
23
0.08 106/cm Ω
26
Electron Affinity
107.30 kJ/mol
8
5.03 kJ/mol
38
Thermal Properties
Specific Heat
0.23 J/(kg K)
28
0.30 J/(kg K)
18
Molar Heat Capacity
27.11 J/mol·K
20
26.40 J/mol·K
28
Thermal Conductivity
66.80 W/m·K
25
35.40 W/m·K
37
Critical Temperature
Not Available
Not Available
Thermal Expansion
22.00 µm/(m·K)
20
22.50 µm/(m·K)
18
Enthalpy
Enthalpy of Vaporization
290.40 kJ/mol
32
150.00 kJ/mol
99+
Enthalpy of Fusion
7.03 kJ/mol
99+
9.16 kJ/mol
38
Enthalpy of Atomization
301.30 kJ/mol
35
163.20 kJ/mol
99+
Standard Molar Entropy
51.20 J/mol.K
29
55.00 J/mol.K
26
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