30-04-2021

Number Of Valence Electrons



Total number of Valence electrons = 4 + 2.1 + 2.7 = 4+2+14 = 20 There are twenty valence electrons in the compound, and four bonds are formed.

Number Of Valence Electrons In Phosphorus

  1. The number of valence electrons The number of valence electrons of an element can be determined by the periodic table group (vertical column) in which the element is categorized.
  2. Get the free 'Valence Shell Calculator' widget for your website, blog, Wordpress, Blogger, or iGoogle. Find more Chemistry widgets in Wolfram Alpha.

Element Dysprosium - Dy

Comprehensive data on the chemical element Dysprosium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Dysprosium. 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.

Dysprosium Menu

  • Dysprosium Page One
  • Dysprosium Page Two

Overview of Dysprosium

  • Atomic Number: 66
  • Period: 6
  • Series: Lanthanides

Dysprosium's Name in Other Languages

Number of valence electrons in potassium
  • Latin: Dysprosium
  • Czech: Dysprosium
  • Croatian: Disprozij
  • French: Dysprosium
  • German: Dysprosium -s
  • Italian: Disprosio
  • Norwegian: Dysprosium
  • Portuguese: Disprósio
  • Russian: Диспроэий
  • Spanish: Disprósio
  • Swedish: Dysprosium

Atomic Structure of Dysprosium

  • Atomic Radius: 2.49Å
  • Atomic Volume: 19cm3/mol
  • Covalent Radius: 1.59Å
  • Cross Section (Thermal Neutron Capture)σa/barns: 920
  • Crystal Structure: Hexagonal
  • Electron Configuration:
    1s2 2s2p6 3s2p6d10 4s2p6d10f10 5s2p6 6s2
  • Electrons per Energy Level: 2,8,18,28,8,2
    Shell Model
  • Ionic Radius: 0.912Å
  • Filling Orbital: 4f10
  • Number of Electrons (with no charge): 66
  • Number of Neutrons (most common/stable nuclide): 96
  • Number of Protons: 66
  • Oxidation States: 3
  • Valence Electrons: 4f10 6s2

Chemical Properties of Dysprosium

  • Electrochemical Equivalent: 2.021g/amp-hr
  • Electron Work Function:
  • Electronegativity: 1.22 (Pauling); 1.1 (Allrod Rochow)
  • Heat of Fusion: 11.06kJ/mol
  • Incompatibilities:
  • Ionization Potential
    • First: 5.94
    • Second: 11.67
    • Third: 22.802
  • Valence Electron Potential (-eV): 47.4
Number

Physical Properties of Dysprosium

  • Atomic Mass Average: 162.5
  • Boiling Point: 2835K 2562°C 4644°F
  • Coefficient of lineal thermal expansion/K-1: 10E-6
  • Conductivity
    Electrical: 0.0108 106/cm Ω
    Thermal: 0.107 W/cmK
  • Density: 8.55g/cc @ 300K
  • Description:
    A hard, selivery rare earth metal. It is oxidised by oxygen, dissolves in acids and reacts rapidly with cold water.
  • Elastic Modulus:
    • Bulk: 40.5/GPa
    • Rigidity: 24.7/GPa
    • Youngs: 61.4/GPa
  • Enthalpy of Atomization: 301 kJ/mole @ 25°C
  • Enthalpy of Fusion: 11.05 kJ/mole
  • Enthalpy of Vaporization: 230 kJ/mole
  • Flammablity Class:
  • Freezing Point:see melting point
  • Hardness Scale
    • Brinell: 500 MN m-2
    • Vickers: 540 MN m-2
  • Heat of Vaporization: 230kJ/mol
  • Melting Point: 1685K 1412°C 2574°F
  • Molar Volume: 19 cm3/mole
  • Physical State (at 20°C & 1atm): Solid
  • Specific Heat: 0.17J/gK

Regulatory / Health

  • CAS Number
    • 7429-91-6
  • 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: n/a
    • Bone/p.p.m: n/a
    • Liver/p.p.m: n/a
    • Muscle/p.p.m: n/a
    • Daily Dietary Intake: n/a
    • Total Mass In Avg. 70kg human: n/a
  • Discovery Year: 1886
  • Name Origin:
    Greek: dysprositos (hard to get at).
  • Abundance of Dysprosium:
    • Earth's Crust/p.p.m.: 6
    • Seawater/p.p.m.:
      • Atlantic Suface: 0.0000008
      • Atlantic Deep: 9.6E-07
      • Pacific Surface: N/A
      • Pacific Deep: N/A
    • Atmosphere/p.p.m.: N/A
    • Sun (Relative to H=1E12): 11.5
  • Sources of Dysprosium:
    Usually found with erbium, holmium and other rare earths in some minerals. Around 100 tons are produced annually. Primary mining areas are USA, Brazil, India, Sri Lanka and Australia.
  • Uses of Dysprosium:
    As control-rods for nuclear reactors because it readily absorbs neutrons. Also used in alloys for making magnets.
  • Additional Notes:

Dysprosium Menu

  • Dysprosium Page One
  • Dysprosium Page Two

References

Number Of Valence ElectronsHow

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.

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Number Of Valence Electrons In Neon

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Number Of Valence Electrons Nitrogen

Number of valence electrons in phosphorus

Number Of Valence Electrons Oxygen

Kenneth Barbalace. Periodic Table of Elements - Dysprosium - Dy. EnvironmentalChemistry.com. 1995 - 2021. Accessed on-line: 4/24/2021
https://EnvironmentalChemistry.com/yogi/periodic/Dy.html/
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Number Of Valence Electrons In Fluorine

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