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Periodic Table Element Comparison: Compare Elements - Argon vs Francium

Compare Argon and Francium

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

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

1

2

3

4

5

6

57 - 71
La - Lu

7

2
8
18
32
18
8
1

2
8
18
32
18
8
2

89 - 103
Ac - Lr

2
8
18
32
32
10
2

2
8
18
32
32
11
2

2
8
18
32
32
12
2

2
8
18
32
32
13
2

2
8
18
32
32
14
2

2
8
18
32
32
15
2

2
8
18
32
32
16
2

2
8
18
32
32
17
2

2
8
18
32
32
18
2

2
8
18
32
32
18
3

2
8
18
32
32
18
4

2
8
18
32
32
18
5

2
8
18
32
32
18
6

2
8
18
32
32
18
7

2
8
18
32
32
18
8

2
8
18
32
18
9
2

2
8
18
32
18
10
2

2
8
18
32
20
9
2

2
8
18
32
21
9
2

2
8
18
32
22
9
2

2
8
18
32
24
8
2

2
8
18
32
25
8
2

2
8
18
32
25
9
2

2
8
18
32
27
8
2

2
8
18
32
28
8
2

2
8
18
32
29
8
2

2
8
18
32
30
8
2

2
8
18
32
31
8
2

2
8
18
32
32
8
2

2
8
18
32
32
8
3

argon

argon Shell Structure

18 Ar Argon

francium

francium Shell Structure

87 Fr Francium

Periodic Table Element Comparison

Facts

Name
Atomic Number
Atomic Symbol
Atomic Weight
Phase
Color
Classification
Group in Periodic Table
Group Name
Period in Periodic Table
Block in Periodic Table
Electronic Configuration
Melting Point
Boiling Point
Electronic Shell Structure
CAS Number
Neighborhood Elements

Argon
18
Ar
39.948
Gas
Colorless
noble gas
18
helium family or neon family
3
p
[Ne] 3s2 3p6
-189.3 °C
-185.8 °C
2, 8, 8
CAS7440-37-1
Neighborhood Elements of Argon

Francium
87
Fr
223
Solid
Silver
alkali metal
1
lithium family
7
s
[Rn] 7s1
N/A
N/A
2, 8, 18, 32, 18, 8, 1
CAS7440-73-5
Neighborhood Elements of Francium

History

History

The element Argon was discovered by Lord Rayleigh in year 1894 in United Kingdom. Argon derived its name from from the Greek word argos, meaning 'idle'

The element Francium was discovered by Marguerite Perey in year 1939 in France. Francium derived its name derived its name from from Francia, the New Latin name for France

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)

Abundance in Universe
Abundance in Sun
Abundance in Meteorites
Abundance in Earth's Crust
Abundance in Oceans
Abundance in Humans

0.0002
7e-05
N/A
1.5e-06
4.5e-07
N/A

N/A
N/A
N/A
N/A
N/A
None

Crystal Structure and Atomic Structure

Atomic Radius
Atomic Volume
Covalent Radius
Van der Waals Radius
Neutron Cross Section
Atomic Spectrum
Lattice Constant
Lattice Angle
Space Group Name
Space Group Number
Crystal Structure

71 pm
22.392376681614 cm³
97 pm
188 pm
0.65

525.6, 525.6, 525.6 pm
π/2, π/2, π/2
Fm_ 3m
225
Face Centered Cubic

N/A
N/A cm³
N/A
N/A
N/A

N/A
N/A
N/A
N/A
Body Centered Cubic

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

18
18
18
39.948
21.948
2, 8, 8
[Ne] 3s2 3p6
3s2 3p6

¹S₀

87
87
87
223
136
2, 8, 18, 32, 18, 8, 1
[Rn] 7s1
7s1
1
²S_1/2

Isotopes - Nuclear Properties

Isotopes

Naturally occurring stable isotopes: 36Ar, 38Ar, 40Ar.

Naturally occurring stable isotopes: None.

Chemical Properties: Ionization Energies and electron affinity

Valence or Valency
Electronegativity
ElectronAffinity
Ionization Energies

0
N/A
0 kJ/mol
1520.6, 2665.8, 3931, 5771, 7238, 8781, 11995, 13842, 40760, 46186 kJ/mol

1
0.7
N/A
380 kJ/mol

Physical Properties

Density
Molar Volume
Elastic Properties
Young Modulus
Shear Modulus
Bulk Modulus
Poisson Ratio
Hardness - Tests to Measure of Hardness of Element
Mohs Hardness
Vickers Hardness
Brinell Hardness
Electrical Properties
Electrical Conductivity
Resistivity
Superconducting Point
Heat and Conduction Properties
Thermal Conductivity
Thermal Expansion
Magnetic Properties
Magnetic Type
Curie Point
Mass Magnetic Susceptibility
Molar Magnetic Susceptibility
Volume Magnetic Susceptibility
Optical Properties
Refractive Index
Acoustic Properties
Speed of Sound

1.784 g/l
22.392376681614

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

N/A
N/A
N/A

N/A
N/A
N/A

0.01772 W/(m K)
N/A

Diamagnetic
N/A
-6×10-9
-2.4×10-10
-1.07×10-8

1.000281

319 m/s

N/A
N/A

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

N/A
N/A
N/A

N/A
N/A
N/A

N/A
N/A

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

N/A

N/A

Thermal Properties - Enthalpies and thermodynamics

Melting Point
Boiling Point
Critical Temperature
Superconducting Point
Enthalpies
Heat of Fusion
Heat of Vaporization
Heat of Combustion

-189.3 °C
-185.8 °C
150.87 K
N/A

1.18 kJ/mol
6.5 kJ/mol
N/A

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

2 kJ/mol
65 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS Number
RTECS Number
DOT Hazard Class
DOT Numbers
EU Number
NFPA Fire Rating
NFPA Hazards
NFPA Health Rating
NFPA Reactivity Rating
More
AutoIgnition Point
Flashpoint

CAS7440-37-1
RTECSCF2300000
2.2
1951
N/A
N/A
N/A
N/A
N/A

N/A
N/A

CAS7440-73-5
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A

N/A
N/A

Compare With Other Elements

Compare Argon with other Group 18 elements

Argon vs Helium

Argon vs Krypton

Argon vs Oganesson

Compare Argon with other noble gas

Argon vs Helium

Argon vs Krypton

Argon vs Oganesson

Compare Francium with other Group 1 elements

Francium vs Hydrogen

Francium vs Lithium

Francium vs Sodium

Francium vs Potassium

Francium vs Rubidium

Francium vs Cesium

Compare Francium with other alkali metal

Francium vs Lithium

Francium vs Sodium

Francium vs Potassium

Francium vs Rubidium

Francium vs Cesium