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Promethium
Promethium

Radium
Radium



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Promethium
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Radium

Atomic Structure of Promethium and Radium

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1 Atomic
1.1 Atomic Number
6188
Atomic Structure of Lithium
3 117
1.2 Electron Configuration
[Xe] 4f5 6s2
[Rn] 7s2
1.3 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Body Centered Cubic (BCC)
1.3.1 Crystal Lattice
1.4 Atom
1.4.1 Number of Protons
6188
Atomic Structure of Lithium
3 117
1.4.2 Number of Neutrons
84138
Atomic Structure of Lithium
4 184
1.4.3 Number of Electrons
6188
Atomic Structure of Lithium
3 117
1.5 Radius of an Atom
1.5.1 Atomic Radius
183.00 pmNA
Atomic Structure of Beryllium
112 265
1.5.2 Covalent Radius
199.00 pm221.00 pm
Atomic Structure of Beryllium
96 260
1.5.3 Van der Waals Radius
236.00 pm283.00 pm
Atomic Structure of Zinc
139 348
1.6 Atomic Weight
145.00 amu226.00 amu
Atomic Structure of Lithium
6.94 294
1.7 Atomic Volume
22.39 cm3/mol45.20 cm3/mol
Atomic Structure of Manganese
1.39 71.07
1.8 Adjacent Atomic Numbers
1.8.1 Previous Element
1.8.2 Next Element
1.9 Valence Electron Potential
44.10 (-eV)20.10 (-eV)
Atomic Structure of Francium
8 392.42
1.10 Lattice Constant
NA514.80 pm
Atomic Structure of Beryllium
228.58 891.25
1.11 Lattice Angles
Unknown
π/2, π/2, π/2
1.12 Lattice C/A Ratio
NANA
Atomic Structure of Beryllium
1.567 1.886