Periodic Table Element Comparison: Compare Elements - Chlorine vs Magnesium
Compare Chlorine and Magnesium
Compare Chlorine and Magnesium 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 Chlorine vs Magnesium with most reliable information about their properties, attributes, facts, uses etc. You can compare Cl vs Mg on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.
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 |
Chlorine |
17 |
Cl |
35.453 |
Gas |
Yellow |
halogens |
17 |
fluorine family |
3 |
p |
[Ne] 3s2 3p5 |
-101.5 °C |
-34.04 °C |
2, 8, 7 |
CAS7782-50-5 |
Neighborhood Elements of Chlorine |
Magnesium |
12 |
Mg |
24.305 |
Solid |
Silver |
alkaline earth metal |
2 |
beryllium family |
3 |
s |
[Ne] 3s2 |
650 °C |
1090 °C |
2, 8, 2 |
CAS7439-95-4 |
Neighborhood Elements of Magnesium |
History
History |
The element Chlorine was discovered by Carl Wilhelm Scheele in year 1774 in Sweden. Chlorine derived its name from from the Greek word chloros, meaning 'greenish yellow' |
The element Magnesium was discovered by Joseph Black in year 1755 in United Kingdom. Magnesium derived its name derived its name from from Magnesia, a district of Eastern Thessaly in Greece |
Presence: Abundance in Nature and Around Us
1e-06 |
8e-06 |
0.00037 |
0.00017 |
0.02 |
0.0012 |
0.0006 |
0.0007 |
0.12 |
0.029 |
0.0013 |
0.00027 |
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 |
79 pm |
11.030802738021 cm3 |
99 pm |
175 pm |
35.3 |
![]() |
622.35, 445.61, 817.85 pm |
π/2, π/2, π/2 |
Cmca |
64 |
Base Centered Orthorhombic ![]() |
145 pm |
13.984464902186 cm3 |
130 pm |
173 pm |
0.063 |
![]() |
320.94, 320.94, 521.08 pm |
π/2, π/2, 2 π/3 |
P63/mmc |
194 |
Simple Hexagonal ![]() |
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 |
17 |
17 |
17 |
35.453 |
18.453 |
2, 8, 7 |
[Ne] 3s2 3p5 |
3s2 3p5 |
-1 1;2;3;4;5;6;7 |
2P3/2 |
![]() |
12 |
12 |
12 |
24.305 |
12.305 |
2, 8, 2 |
[Ne] 3s2 |
3s2 |
1;2 |
1S0 |
![]() |
Isotopes - Nuclear Properties
Isotopes |
Naturally occurring stable
isotopes: 35Cl, 37Cl. |
Naturally occurring stable
isotopes: 24Mg, 25Mg, 26Mg. |
Chemical Properties: Ionization Energies and electron affinity
5 |
3.16 |
349 kJ/mol |
1251.2, 2298, 3822, 5158.6, 6542, 9362, 11018, 33604, 3.86×104, 43961 kJ/mol |
2 |
1.31 |
0 kJ/mol |
737.7, 1450.7, 7732.7, 10542.5, 13630, 18020, 21711, 25661, 31653, 35458 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 |
3.214 g/l |
11.030802738021 |
N/A |
N/A |
1.1 GPa |
N/A |
N/A |
N/A |
N/A |
0.01 S/m |
100 m Ω |
N/A |
0.0089 W/(m K) |
N/A |
Diamagnetic |
N/A |
-7.2×10-9 |
-5.11×10-10 |
-2.31×10-8 |
1.000773 |
206 m/s |
1.738 g/cm3 |
13.984464902186 |
45 GPa |
17 GPa |
45 GPa |
0.29 |
2.5 MPa |
N/A |
260 MPa |
2.3×107 S/m |
4.4×10-8 m Ω |
N/A |
160 W/(m K) |
8.2×10-6 K-1 |
Paramagnetic |
N/A |
6.9×10-9 |
1.68×10-10 |
1.2e-05 |
N/A |
4602 m/s |
Thermal Properties - Enthalpies and thermodynamics
-101.5 °C |
-34.04 °C |
416.9 K |
N/A |
3.2 kJ/mol |
10.2 kJ/mol |
N/A |
650 °C |
1090 °C |
N/A |
N/A |
8.7 kJ/mol |
128 kJ/mol |
-668 J/(kg K) |
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 |
CAS7782-50-5 |
RTECSFO2100000 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
CAS7439-95-4 |
N/A |
4.1 |
2950 |
N/A |
1 |
N/A |
0 |
1 |
472 °C |
500 °C |