Nihonium vs Roentgenium

Periodic Table

Symbol

Group Number

1311 0 17

Period Number

77 2 7

Block

Element Family

CAS Number

5408470754386242 7429905 54386242

Space Group Name

Space Group Number

194.00194.00 11 276

Facts

Interesting Facts

Sources

History

Who Discovered

Discovery

Abundance

Abundance In Universe

0.00 %0.00 % 0 0.11

Abundance In Sun

-- 0 0.1

Abundance In Meteorites

-- 0 22

Abundance In Earth's Crust

-- 1E-37 8.1

Abundance In Oceans

-- 0 1.1

Abundance In Humans

-- 0 1.4

Uses

Uses & Benefits

Industrial Uses

Medical Uses

Other Uses

Biological Properties

Toxicity

Present in Human Body

In Blood

0.00 Blood/mg dm-30.00 Blood/mg dm-3 0 1970

In Bone

0.20 p.p.m.0.00 p.p.m. 0 170000

Physical

Melting Point

430.00 °C- -38.83 3410

Boiling Point

1,130.00 °C2,800.00 °C 0 5660

Appearance

Physical State

Color

Luster

Hardness

Mohs Hardness

-- 0.2 8.5

Brinell Hardness

600.00 MPa700.00 MPa 0.14 3490

Vickers Hardness

350.00 MPa450.00 MPa 0 3920

Speed of Sound

3,600.00 m/s3,430.00 m/s 818 16200

Optical Properties

Refractive Index

1.301.30 0.155 3.41

Reflectivity

60.00 %64.00 % 5 97

Allotropes

α Allotropes

β Allotropes

γ Allotropes

Chemical

Chemical Formula

Isotopes

Known Isotopes

71 0 38

Electronegativity

Pauling Electronegativity

1.300.00 0 2.6

Sanderson Electronegativity

1.901.90 0.22 2.56

Allred Rochow Electronegativity

1.301.30 0.86 1.9

Mulliken-Jaffe Electronegativity

1.000.90 0.62 2.48

Allen Electronegativity

0.700.80 0.659 2.7

Electropositivity

Pauling Electropositivity

2.202.20 1.46 3.3

Ionization Energies

1st Energy Level

704.90 kJ/mol1,022.70 kJ/mol 375.7 26130

2nd Energy Level

2,238.50 kJ/mol2,074.40 kJ/mol 392.8 28750

3rd Energy Level

3,023.30 kJ/mol3,077.90 kJ/mol 392.8 34230

4th Energy Level

4,351.50 kJ/mol4,052.40 kJ/mol 375.7 37066

5th Energy Level

5,692.60 kJ/mol5,306.70 kJ/mol 392 97510

6th Energy Level

7,000.00 kJ/mol11,100.00 kJ/mol 1007 105800

7th Energy level

7,040.00 kJ/mol5,800.00 kJ/mol 1007 114300

8th Energy Level

7,040.00 kJ/mol5,800.00 kJ/mol 730 125300

9th Energy Level

7,040.00 kJ/mol5,650.00 kJ/mol 1007 134700

10th Energy Level

7,040.00 kJ/mol5,800.00 kJ/mol 392 144300

11th Energy Level

7,040.00 kJ/mol8,300.00 kJ/mol 392 169988

12th Energy Level

70,000.00 kJ/mol8,300.00 kJ/mol 0 189368

13th Energy Level

7,000.00 kJ/mol8,700.00 kJ/mol 1007 76015

14th Energy Level

7,000.00 kJ/mol8,300.00 kJ/mol 380 86450

15th Energy Level

70,000.00 kJ/mol87,000.00 kJ/mol 33000 100700

16th Energy Level

70,000.00 kJ/mol83,000.00 kJ/mol 375.7 109480

17th Energy Level

540.00 kJ/mol830.80 kJ/mol 375.7 122200

18th Energy Level

3,200.00 kJ/mol8,300.00 kJ/mol 0 134810

19th Energy Level

540.20 kJ/mol580.00 kJ/mol 375.7 148700

20th Energy Level

700.00 kJ/mol580.00 kJ/mol 0 171200

21st Energy Level

1,130.00 kJ/mol5,800.00 kJ/mol 375.7 179100

22nd Energy Level

558.00 kJ/mol580.00 kJ/mol 330 184900

23rd Energy Level

7,000.00 kJ/mol5,800.00 kJ/mol 357.6 198800

24th Energy Level

700.00 kJ/mol538.70 kJ/mol 297.3 195200

25th Energy Level

0.00 kJ/mol0.00 kJ/mol 0 121900

26th Energy Level

586.20 kJ/mol580.00 kJ/mol 357.6 127700

27th Energy Level

704.90 kJ/mol580.00 kJ/mol 0 133800

28th Energy Level

704.90 kJ/mol880.00 kJ/mol 297.3 139800

29th Energy Level

704.90 kJ/mol580.00 kJ/mol 0 148100

30th Energy Level

704.00 kJ/mol0.00 kJ/mol 0 154500

Electrochemical Equivalent

3.00 g/amp-hr3.10 g/amp-hr 0.16812 8.3209

Electron Work Function

4.90 eV4.90 eV 2.14 6

Other Chemical Properties

Atomic

Atomic Number

113111 3 117

Electron Configuration

Crystal Structure

Crystal Lattice

Atom

Number of Protons

113111 3 117

Number of Neutrons

150161 4 285

Number of Electrons

113111 3 117

Radius of an Atom

Atomic Radius

170.00 pm200.00 pm 0 348

Covalent Radius

170.00 pm126.00 pm 0 260

Van der Waals Radius

320.00 pm280.00 pm 0 348

Atomic Weight

286.00 amu281.00 amu 6.94 294

Atomic Volume

21.10 cm3/mol28.70 cm3/mol 1.39 71.07

Adjacent Atomic Numbers

Previous Element

Next Element

Valence Electron Potential

6.20 (-eV)11.90 (-eV) 0 392.42

Lattice Constant

0.00 pm0.00 pm 0 891.25

Lattice Angles

Lattice C/A Ratio

1.581.90 0.423 1.9

Mechanical

Density

Density At Room Temperature

16.00 g/cm³28.70 g/cm³ 0.534 40.7

Density When Liquid (at m.p.)

16.00 g/cm328.70 g/cm3 0.512 41

Tensile Strength

80.00 MPa65.00 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)0.00 (Pa) 0 774

Elasticity properties

Shear Modulus

40.00 GPa26.00 GPa 1.3 222

Bulk Modulus

0.00 GPa0.00 GPa 0 462

Young's Modulus

12.20 GPa12.70 GPa 0 528

Poisson Ratio

0.300.30 0.032 0.47

Other Mechanical Properties

Magnetic

Magnetic Characteristics

Specific Gravity

16.0028.70 0.53 4500

Magnetic Ordering

Permeability

0.00 H/m0.00 H/m 1.25643E-06 0.0063

Susceptibility

0.000.00 -0.000166 200000

Electrical Properties

Electrical Property

Resistivity

0.32 nΩ·m0.20 nΩ·m 0.1 961

Electrical Conductivity

0.00 10⁶/cm Ω0.00 10⁶/cm Ω 0 0.63

Electron Affinity

0.00 kJ/mol50.00 kJ/mol 0 222.8

Thermal

Specific Heat

0.12 J/(kg K)0.13 J/(kg K) 0.1 3.6

Molar Heat Capacity

27.00 J/mol·K23.70 J/mol·K 13.1 62.7

Thermal Conductivity

1.70 W/m·K0.10 W/m·K 0 429

Critical Temperature

700.00 K1,100.00 K 26.3 3695

Thermal Expansion

6.20 µm/(m·K)12.60 µm/(m·K) 4.5 97

Enthalpy

Enthalpy of Vaporization

410.80 kJ/mol580.00 kJ/mol 7.32 799.1

Enthalpy of Fusion

-- 2.1 35.23

Enthalpy of Atomization

320.70 kJ/mol580.00 kJ/mol 61.5 837

Standard Molar Entropy

65.00 J/mol.K57.00 J/mol.K 9.5 198.1