Mg Atomic Number

01-05-2021 by



Mg Atomic Number

  1. K Atomic Number
  2. Mg Atomic Number And Mass
  3. Mg Atomic Weight
  4. 24 12 Mg Atomic Number
  5. Mg Atomic Number And Mass
  6. 26 Mg Atomic Number

Find an answer to your question “Magnesium (Mg) has an atomic number of 12.What is the ground-state electron configuration of magnesium? 1s21p61d4 C.” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions. There are mainly three Magnesium isotopes that are stable: Mg 24, 25 and 26. The abundance on earth of the first is 79% the second 10% and the third 11%. The relative atomic mass of Magnesium (the average of all the masses of the stable isotopes) is stated as 24.31 in most of the periodic tables and 24.305 in more specific references.

Magnesium (atomic symbol: Mg, atomic number: 12) is a Block S, Group 2, Period 3 element with an atomic mass of 24.3050. The number of electrons in each of Magnesium's shells is 2, 8, 2 and its electron configuration is Ne 3s 2. The magnesium atom has a radius of 160 pm and a Van der Waals radius of 173 pm. Magnesium was discovered.

Element Magnesium - Mg

Comprehensive data on the chemical element Magnesium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Magnesium. Common chemical compounds are also provided for many elements. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one's studies.

Mg Atomic Number

Magnesium Menu

  • Magnesium Page One
  • Magnesium Page Two
  • Magnesium Page Three

K Atomic Number

Mg Atomic Number

Mg Atomic Number And Mass

Overview of Magnesium

  • Atomic Number: 12
  • Group: 2
  • Period: 3
  • Series: Alkali Earth Metals

Magnesium's Name in Other Languages

  • Latin: Magnesium
  • Czech: Hořčík
  • Croatian: Magnezij
  • French: Magnésium
  • German: Magnesium - r
  • Italian: Magnesio
  • Norwegian: Magnesium
  • Portuguese: Magnésio
  • Russian: Магний
  • Spanish: Magnesio
  • Swedish: Magnesium

Atomic Structure of Magnesium

  • Atomic Radius: 1.72Å
  • Atomic Volume: 13.97cm3/mol
  • Covalent Radius: 1.36Å
  • Cross Section (Thermal Neutron Capture)σa/barns: 0.063
  • Crystal Structure: Hexagonal
  • Electron Configuration:
    1s2 2s2p6 3s2
  • Electrons per Energy Level: 2,8,2
    Shell Model
  • Ionic Radius: 0.72Å
  • Filling Orbital: 3s2
  • Number of Electrons (with no charge): 12
  • Number of Neutrons (most common/stable nuclide): 12
  • Number of Protons: 12
  • Oxidation States: 2
  • Valence Electrons: 3s2
    Electron Dot Model

Chemical Properties of Magnesium

  • Electrochemical Equivalent: 0.45341g/amp-hr
  • Electron Work Function: 3.66eV
  • Electronegativity: 1.31 (Pauling); 1.23 (Allrod Rochow)
  • Heat of Fusion: 8.954kJ/mol
  • Incompatibilities:
  • Ionization Potential
    • First: 7.646
    • Second: 15.035
    • Third: 80.143
  • Valence Electron Potential (-eV): 40

Physical Properties of Magnesium

  • Atomic Mass Average: 24.305
  • Boiling Point: 1363K 1090°C 1994°F
  • Coefficient of lineal thermal expansion/K-1: 26.1E-6
  • Conductivity
    Electrical: 0.226 106/cm Ω
    Thermal: 1.56 W/cmK
  • Density: 1.738g/cc @ 300K
  • Description:
    Grayish-white metal. Reacts with hot water and burns in air when ignited.
  • Elastic Modulus:
    • Bulk: 35.6/GPa
    • Rigidity: 17.3/GPa
    • Youngs: 44.7/GPa
  • Enthalpy of Atomization: 148.5 kJ/mole @ 25°C
  • Enthalpy of Fusion: 8.95 kJ/mole
  • Enthalpy of Vaporization: 128.7 kJ/mole
  • Flammablity Class:
  • Freezing Point:see melting point
  • Hardness Scale
    • Brinell: 260 MN m-2
    • Mohs: 2.5
  • Heat of Vaporization: 127.4kJ/mol
  • Melting Point: 922K 649°C 1200°F
  • Molar Volume: 13.97 cm3/mole
  • Optical Reflectivity: 74%
  • Physical State (at 20°C & 1atm): Solid
  • Specific Heat: 1.02J/gK
  • Vapor Pressure = 361Pa@649°C

Regulatory / Health

  • CAS Number
    • 7439-95-4
  • OSHAPermissible Exposure Limit (PEL)
    • No limits set by OSHA
  • OSHA PEL Vacated 1989
    • No limits set by OSHA
  • NIOSHRecommended Exposure Limit (REL)
    • No limits set by NIOSH
  • Levels In Humans:
    Note: this data represents naturally occuring levels of elements in the typical human, it DOES NOT represent recommended daily allowances.
    • Blood/mg dm-3: 37.8
    • Bone/p.p.m: 700-1800
    • Liver/p.p.m: 590
    • Muscle/p.p.m: 900
    • Daily Dietary Intake: 250-380 mg
    • Total Mass In Avg. 70kg human: 19 g
  • Discovery Year: 1808
  • Name Origin:
    Greek: From Magnesia a district of Thessaly.
  • Abundance of Magnesium:
    • Earth's Crust/p.p.m.: 23000
    • Seawater/p.p.m.: 1200
    • Atmosphere/p.p.m.: N/A
    • Sun (Relative to H=1E12): 4E+07
  • Sources of Magnesium:
    Usually obtained by electrolysis of melted magnesium chloride (MgCl2) found in sea water. World production is around 350,000 tons per year. Primary mining areas are Austria, China, Poland, Russia, USA, India, Greece and Canada.
  • Uses of Magnesium:
    Used in alloys to make airplanes, missiles, racing bikes and other things that need light metals. Also used in fireplace bricks, flashbulbs, pigments and filters.
  • Additional Notes:
    In 1755 Joseph Black in Edinburgh Scotland recognized magnesium as an element, however, it wasn't issolated until 1808 by Sir Humphrey Davy.

Mg Atomic Weight

Magnesium Menu

  • Magnesium Page One
  • Magnesium Page Two
  • Magnesium Page Three

References

Atomic

A list of reference sources used to compile the data provided on our periodic table of elements can be found on the main periodic table page.

Related Resources

  • Anatomy of the Atom
    Answers many questions regarding the structure of atoms.
  • Molarity, Molality and Normality
    Introduces stoichiometry and explains the differences between molarity, molality and normality.
  • Molar Mass Calculations and Javascript Calculator
    Molar mass calculations are explained and there is a JavaScript calculator to aid calculations.
  • Chemical Database
    This database focuses on the most common chemical compounds used in the home and industry.
Atomic

Citing this page

If you need to cite this page, you can copy this text:

Kenneth Barbalace. Periodic Table of Elements - Magnesium - Mg. EnvironmentalChemistry.com. 1995 - 2021. Accessed on-line: 4/24/2021
https://EnvironmentalChemistry.com/yogi/periodic/Mg.html
.

Linking to this page

24 12 Mg Atomic Number

If you would like to link to this page from your website, blog, etc., copy and paste this link code (in red) and modify it to suit your needs:

Mg Atomic Number And Mass

<a href='https://EnvironmentalChemistry.com/yogi/periodic/Mg.html'>echo Periodic Table of Elements: Magnesium - Mg (EnvironmentalChemistry.com)</a>- Comprehensive information for the element Magnesium - Mg is provided by this page including scores of properties, element names in many languages, most known nuclides and technical terms are linked to their definitions.
.

NOTICE: While linking to articles is encouraged, OUR ARTICLES MAY NOT BE COPIED TO OR REPUBLISHED ON ANOTHER WEBSITE UNDER ANY CIRCUMSTANCES.

26 Mg Atomic Number

PLEASE, if you like an article we published simply link to it on our website do not republish it.





Gmail To Outlook Contacts Sync
Records

Comments are closed.