;

Periodic Table Element Comparison: Compare Elements - Beryllium vs Americium

Compare Beryllium and Americium

Compare Beryllium and Americium 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 Beryllium vs Americium with most reliable information about their properties, attributes, facts, uses etc. You can compare Be vs Am on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

Facts

Beryllium
4
Be
9.012182
Solid
SlateGray
alkaline earth metal
2
beryllium family 
2
s
[He] 2s2
1287 °C
2470 °C
2, 2
CAS7440-41-7
Neighborhood Elements of Beryllium
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

History

History
The element Beryllium was discovered by Louis Nicolas Vauquelin in year 1797 in France. Beryllium derived its name from from beryl, a mineral
The element Americium was discovered by Glenn T. Seaborg in year 1944 in United States. Americium derived its name derived its name from from The Americas, as the element was first synthesized on the continent, by analogy with europium

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
1×10-7%
1×10-8%
2.9×10-6%
1.9e-06
6×10-11%
4×10-8%
N/A
None
None
None
None
None

Crystal Structure and Atomic Structure

112 pm
4.8767218614719 cm3
90 pm
N/A
0.0092
beryllium Spectrum
228.58, 228.58, 358.43 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

beryllium Crystal 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

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
4
4
4
9.012182
5.012182
2, 2
[He] 2s2
2s2
 1;2
1S0
beryllium Shells
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

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
9Be.
Naturally occurring stable isotopes:
None.

Chemical Properties: Ionization Energies and electron affinity

2
1.57
0 kJ/mol
899.5, 1757.1, 14848.7, 21006.6 kJ/mol
4
1.3
N/A
578 kJ/mol

Physical Properties

1.848 g/cm3
4.8767218614719

 

287 GPa
132 GPa
130 GPa
0.032


 

5.5 MPa
1670 MPa
600 MPa

 

2.5×107 S/m
4×10-8 m Ω
0.026

 

190 W/(m K)
0.0000113 K-1

 

Diamagnetic
N/A
-1.26×10-8
-1.136×10-10
-2.328e-05

 

N/A

 

1.3×104 m/s
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

Thermal Properties - Enthalpies and thermodynamics

1287 °C
2470 °C
N/A
0.026

 

7.95 kJ/mol
297 kJ/mol
N/A
1176 °C
2011 °C
N/A
0.6

 

N/A
N/A
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7440-41-7
RTECSDS1750000
6.1
1567
N/A
1
N/A
3
0

 

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

 

N/A
N/A