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Periodic Table Element Comparison: Compare Elements - Americium vs Thulium

Compare Americium and Thulium

Compare Americium and Thulium on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known while we study periodic table elements. You can study the detailed comparison between Americium vs Thulium with most reliable information about their properties, attributes, facts, uses etc. You can compare Am vs Tm on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

Facts

Americium
95
Am
243
Solid
Silver
actinide
N/A
 
7
f
[Rn] 5f7 7s2
1176 °C
2011 °C
2, 8, 18, 32, 25, 8, 2
CAS7440-35-9
Neighborhood Elements of Americium
Thulium
69
Tm
168.93421
Solid
Silver
lanthanide
N/A
 
6
f
[Xe] 4f13 6s2
1545 °C
1950 °C
2, 8, 18, 31, 8, 2
CAS7440-30-4
Neighborhood Elements of Thulium

History

History
The element Americium was discovered by Glenn T. Seaborg in year 1944 in United States. Americium derived its name from from The Americas, as the element was first synthesized on the continent, by analogy with europium
The element Thulium was discovered by Per Teodor Cleve in year 1879 in Sweden. Thulium derived its name derived its name from from Thule, the ancient name for Scandinavia

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
N/A
None
None
None
None
None
1×10-8%
2×10-8%
2.9×10-6%
4.5e-07
2×10-11%
N/A

Crystal Structure and Atomic Structure

175 pm
17.77615215801 cm3
N/A
N/A
74
americium Spectrum
346.81, 346.81, 1124.1 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

americium Crystal Structure
222 pm
18.124043557558 cm3
N/A
N/A
105
thulium Spectrum
353.75, 353.75, 555.46 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

thulium Crystal Structure

Atomic and Orbital Properties

Atomic Number
Number of Electrons (with no charge)
Number of Protons
Mass Number
Number of Neutrons
Shell structure (Electrons per energy level)
Electron Configuration
Valence Electrons
Oxidation State
Atomic Term Symbol (Quantum Numbers)
Shell structure
95
95
95
243
148
2, 8, 18, 32, 25, 8, 2
[Rn] 5f7 7s2
5f7 7s2
 2;3;4;5;6;7
8S7/2
americium Shells
69
69
69
168.93421
99.93421
2, 8, 18, 31, 8, 2
[Xe] 4f13 6s2
4f13 6s2
 2;3
2F7/2
thulium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
None.
Naturally occurring stable isotopes:
169Tm.

Chemical Properties: Ionization Energies and electron affinity

4
1.3
N/A
578 kJ/mol
3
1.25
50 kJ/mol
596.7, 1160, 2285, 4120 kJ/mol

Physical Properties

13.67 g/cm3
17.77615215801

 

N/A
N/A
N/A
N/A


 

N/A
N/A
N/A

 

N/A
N/A
0.6

 

10 W/(m K)
N/A

 

Paramagnetic
N/A
5.15×10-8
1.251×10-8
0.000704

 

N/A

 

N/A
9.321 g/cm3
18.124043557558

 

74 GPa
31 GPa
45 GPa
0.21


 

N/A
520 MPa
471 MPa

 

1.4×106 S/m
7×10-7 m Ω
N/A

 

17 W/(m K)
0.0000133 K-1

 

Paramagnetic
25 K
1.99×10-6
3.36179×10-7
0.0185488

 

N/A

 

N/A

Thermal Properties - Enthalpies and thermodynamics

1176 °C
2011 °C
N/A
0.6

 

N/A
N/A
N/A
1545 °C
1950 °C
N/A
N/A

 

16.8 kJ/mol
250 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7440-35-9
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A
CAS7440-30-4
N/A
4.1
3089
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A