Symbol
Am
Fe
Group Number
108
0
17
👆🏻
Period Number
74
2
7
👆🏻
Block
f block
d block
Element Family
Actinide
Transition Metal
CAS Number
74403597439896
7429905
54386242
👆🏻
Space Group Name
P63/mmc
Im_ 3m
Space Group Number
194.00229.00
11
276
👆🏻
Interesting Facts
- Americium metal is produced by bombarding Plutonium with Neutrons.
- Americium metal was discovered as a by-product while testing an atomic bomb (Manhattan Project).
- Iron is not always magnetic in nature, its allotrope are ferromagnetic and the B allotrope is nonmagnetic.
- The blood consists Iron in hemoglobin molecules to transfer Oxygen in the body.
Sources
Obtained By Bombarding Plutonium with Neutrons
Earth's crust, Found in Minerals
History
Who Discovered
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
-
Discovery
In 1944
Before 5000 BC
Abundance
Abundance In Universe
0.00 %0.11 %
0
0.11
👆🏻
Abundance In Sun
0.00 %0.10 %
0
0.1
👆🏻
Abundance In Meteorites
0.00 %22.00 %
0
22
👆🏻
Abundance In Earth's Crust
0.00 %6.30 %
1E-37
8.1
👆🏻
Abundance In Oceans
-0.00 %
0
1.1
👆🏻
Abundance In Humans
0.00 %0.01 %
0
1.4
👆🏻
Uses & Benefits
- Americium metal is used in smoke detection alarms.
-
In the future, this metal has a potential to be used in batteries of spacecrafts.
- Iron metal alloy steel is used in the application of civil engineering and manufacturing.
- Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties.
Industrial Uses
-
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Medical Uses
-
Pharmaceutical Industry, Surgical Instruments Manufacturing
Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys, Sculptures, Statues
Biological Properties
Toxicity
Toxic
Non Toxic
Present in Human Body
✔
✘
✔
✘
In Blood
0.00 Blood/mg dm-3447.00 Blood/mg dm-3
0
1970
👆🏻
In Bone
0.00 p.p.m.380.00 p.p.m.
0
170000
👆🏻
Melting Point
994.00 °C1,535.00 °C
-38.83
3410
👆🏻
Boiling Point
2,607.00 °C2,750.00 °C
0
5660
👆🏻
Appearance
Physical State
Solid
Solid
Color
Silvery White
Gray
Luster
-
Metallic
Hardness
Mohs Hardness
6.004.00
0.2
8.5
👆🏻
Brinell Hardness
260.00 MPa200.00 MPa
0.14
3490
👆🏻
Vickers Hardness
600.00 MPa608.00 MPa
0
3920
👆🏻
Speed of Sound
2,750.00 m/s5,120.00 m/s
818
16200
👆🏻
Optical Properties
Refractive Index
1.302.60
0.155
3.41
👆🏻
Reflectivity
64.00 %65.00 %
5
97
👆🏻
Allotropes
✔
✘
✔
✘
α Allotropes
-
Ferrite (alpha Iron)
β Allotropes
-
beta Iron
γ Allotropes
-
gamma Iron
Chemical Formula
Am
Fe
Isotopes
Known Isotopes
1626
0
38
👆🏻
Electronegativity
Pauling Electronegativity
1.301.83
0
2.6
👆🏻
Sanderson Electronegativity
1.302.20
0.22
2.56
👆🏻
Allred Rochow Electronegativity
1.201.64
0.86
1.9
👆🏻
Mulliken-Jaffe Electronegativity
1.301.83
0.62
2.48
👆🏻
Allen Electronegativity
1.301.80
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
2.702.17
1.46
3.3
👆🏻
Ionization Energies
1st Energy Level
578.00 kJ/mol762.50 kJ/mol
375.7
26130
👆🏻
2nd Energy Level
1,158.00 kJ/mol1,561.90 kJ/mol
392.8
28750
👆🏻
3rd Energy Level
2,132.00 kJ/mol2,957.00 kJ/mol
392.8
34230
👆🏻
4th Energy Level
3,493.00 kJ/mol5,290.00 kJ/mol
375.7
37066
👆🏻
5th Energy Level
5,780.00 kJ/mol7,240.00 kJ/mol
392
97510
👆🏻
6th Energy Level
5,780.00 kJ/mol9,560.00 kJ/mol
1007
105800
👆🏻
7th Energy level
5,780.00 kJ/mol12,060.00 kJ/mol
1007
114300
👆🏻
8th Energy Level
5,780.00 kJ/mol14,580.00 kJ/mol
730
125300
👆🏻
9th Energy Level
5,780.00 kJ/mol22,540.00 kJ/mol
1007
134700
👆🏻
10th Energy Level
5,780.00 kJ/mol25,290.00 kJ/mol
392
144300
👆🏻
11th Energy Level
5,780.00 kJ/mol28,000.00 kJ/mol
392
169988
👆🏻
12th Energy Level
62,400.00 kJ/mol31,920.00 kJ/mol
0
189368
👆🏻
13th Energy Level
5,780.00 kJ/mol34,830.00 kJ/mol
1007
76015
👆🏻
14th Energy Level
5,780.00 kJ/mol37,840.00 kJ/mol
380
86450
👆🏻
15th Energy Level
62,400.00 kJ/mol44,100.00 kJ/mol
33000
100700
👆🏻
16th Energy Level
57,800.00 kJ/mol47,206.00 kJ/mol
375.7
109480
👆🏻
17th Energy Level
578.00 kJ/mol122,200.00 kJ/mol
375.7
122200
👆🏻
18th Energy Level
5,780.00 kJ/mol131,000.00 kJ/mol
0
134810
👆🏻
19th Energy Level
578.00 kJ/mol140,500.00 kJ/mol
375.7
148700
👆🏻
20th Energy Level
578.00 kJ/mol152,600.00 kJ/mol
0
171200
👆🏻
21st Energy Level
5,780.00 kJ/mol163,000.00 kJ/mol
375.7
179100
👆🏻
22nd Energy Level
578.00 kJ/mol173,600.00 kJ/mol
330
184900
👆🏻
23rd Energy Level
5,780.00 kJ/mol188,100.00 kJ/mol
357.6
198800
👆🏻
24th Energy Level
578.00 kJ/mol195,200.00 kJ/mol
297.3
195200
👆🏻
25th Energy Level
578.00 kJ/mol762.00 kJ/mol
0
121900
👆🏻
26th Energy Level
578.00 kJ/mol762.50 kJ/mol
357.6
127700
👆🏻
27th Energy Level
578.00 kJ/mol762.50 kJ/mol
0
133800
👆🏻
28th Energy Level
578.00 kJ/mol762.50 kJ/mol
297.3
139800
👆🏻
29th Energy Level
578.00 kJ/mol762.50 kJ/mol
0
148100
👆🏻
30th Energy Level
578.00 kJ/mol762.00 kJ/mol
0
154500
👆🏻
Electrochemical Equivalent
3.02 g/amp-hr0.69 g/amp-hr
0.16812
8.3209
👆🏻
Electron Work Function
4.30 eV4.70 eV
2.14
6
👆🏻
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Corrosion, Ionization, Solubility
Atomic Number
9526
3
117
👆🏻
Electron Configuration
[Rn] 5f7 7s2
[Ar] 3d6 4s2
Crystal Structure
Double Hexagonal Close Packed (DHCP)
Body Centered Cubic (BCC)
Crystal Lattice
Atom
Number of Protons
9526
3
117
👆🏻
Number of Neutrons
14830
4
285
👆🏻
Number of Electrons
9526
3
117
👆🏻
Radius of an Atom
Atomic Radius
173.00 pm126.00 pm
0
348
👆🏻
Covalent Radius
180.00 pm132.00 pm
0
260
👆🏻
Van der Waals Radius
244.00 pm200.00 pm
0
348
👆🏻
Atomic Weight
243.00 amu55.85 amu
6.94
294
👆🏻
Atomic Volume
17.86 cm3/mol7.10 cm3/mol
1.39
71.07
👆🏻
Adjacent Atomic Numbers
Previous Element
Next Element
Valence Electron Potential
44.00 (-eV)67.00 (-eV)
0
392.42
👆🏻
Lattice Constant
346.81 pm286.65 pm
0
891.25
👆🏻
Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
Lattice C/A Ratio
1.581.35
0.423
1.9
👆🏻
Density
Density At Room Temperature
12.00 g/cm37.87 g/cm3
0.534
40.7
👆🏻
Density When Liquid (at m.p.)
13.67 g/cm36.98 g/cm3
0.512
41
👆🏻
Tensile Strength
80.00 MPa11,000.00 MPa
0.1
11000
👆🏻
Viscosity
0.000.00
1.5E-05
0.0035
👆🏻
Vapor Pressure
Vapor Pressure at 1000 K
0.00 (Pa)0.00 (Pa)
0
121
👆🏻
Vapor Pressure at 2000 K
0.00 (Pa)36.80 (Pa)
0
774
👆🏻
Elasticity properties
Shear Modulus
26.00 GPa82.00 GPa
1.3
222
👆🏻
Bulk Modulus
44.00 GPa170.00 GPa
0
462
👆🏻
Young's Modulus
58.00 GPa211.00 GPa
0
528
👆🏻
Poisson Ratio
0.300.29
0.032
0.47
👆🏻
Other Mechanical Properties
-
Ductile, Malleable, Weldable
Magnetic Characteristics
Specific Gravity
13.677.20
0.53
4500
👆🏻
Magnetic Ordering
Paramagnetic
Ferromagnetic
Permeability
0.00 H/m0.01 H/m
1.25643E-06
0.0063
👆🏻
Susceptibility
0.00200,000.00
-0.000166
200000
👆🏻
Electrical Properties
Electrical Property
-
Conductor
Resistivity
0.69 nΩ·m96.10 nΩ·m
0.1
961
👆🏻
Electrical Conductivity
0.02 106/cm Ω0.10 106/cm Ω
0
0.63
👆🏻
Electron Affinity
63.90 kJ/mol15.70 kJ/mol
0
222.8
👆🏻
Specific Heat
0.11 J/(kg K)0.44 J/(kg K)
0.1
3.6
👆🏻
Molar Heat Capacity
62.70 J/mol·K25.10 J/mol·K
13.1
62.7
👆🏻
Thermal Conductivity
10.00 W/m·K80.40 W/m·K
0
429
👆🏻
Critical Temperature
1,449.00 K1,811.00 K
26.3
3695
👆🏻
Thermal Expansion
13.60 µm/(m·K)11.80 µm/(m·K)
4.5
97
👆🏻
Enthalpy
Enthalpy of Vaporization
161.00 kJ/mol351.00 kJ/mol
7.32
799.1
👆🏻
Enthalpy of Fusion
14.39 kJ/mol14.90 kJ/mol
2.1
35.23
👆🏻
Enthalpy of Atomization
268.00 kJ/mol414.20 kJ/mol
61.5
837
👆🏻
Standard Molar Entropy
63.10 J/mol.K27.30 J/mol.K
9.5
198.1
👆🏻