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Number Of Valence Electrons In Iodine



World production of iodine is around 12,000 tons. Primary producing areas are Chile and Japan. Uses of Iodine: Required in small amounts by humans. Once used as an antiseptic, but no longer due to its poisonous nature. Used as a disinfectant, in pharmaceuticals, dyes, catalysts and photography. Additional Notes: Iodine Menu. Iodine Page One. Iodine has seven valence electrons. Valence electrons of an atom are located in the outermost shell of the atom and participate in bonding. There are 7 valence shell electrons and 46 inner shell electrons in the ground state of iodine. Was this answer helpful? Answer and Explanation: We can identify the number of valence electrons in iodine by its group number on a periodic table. As it is in Group 7A, it means it has 7 valence electrons and therefore. The Iodine atom has 7 valence electrons. F also has 7 valence electrons. But since there are 5 atoms of F, we multiply 7×5= 35 valence electrons. Adding both we get 35+7= 42. In the Lewis structure for IF5 you'll need to put a total of 12 valence electrons on the Iodine atom in order to draw the Lewis structure. Remember that Iodine (I) can hold more than eight valence electrons. For the IF5 Lewis structure, calculate the total number of valence electrons for the IF5 molecule.

  1. Number Of Valence Electrons In Iodine
  2. Determine The Number Of Core And Valence Electrons Present In Iodine
  3. How Many Valence Electrons Iodine

Drawing the Lewis Structure for IF3

Viewing Notes:

  • In the IF3 Lewis structure Iodine (I) is the least electronegative atom and goes in the center of the Lewis structure.
  • The IF3 Lewis structure you'll need to put more than eight valence electrons on the Iodine atom.
  • In the Lewis structure for IF3 there are a total of 28 valence electrons.


See the Big List of Lewis Structures

Transcript: This is the IF3 Lewis structure. Iodine has 7 valence electrons. Fluorine, 7 as well, but we have three Fluorines for a total of 28 valence electrons. Iodine is the least electronegative, so we'll put it in the center, and then we'll put our Fluorines on the outside. We'll put a chemical bond between the Iodine and the Fluorines, like this. So we've used 2, 4, 6 valence electrons. Form the octets on the Fluorines. So we have 6, 8, 10, 24, so we've used 24, but we have 28.

We have four additional valence electrons. The Fluorines all have octets, but the Iodine doesn't have an octet. We also know that Iodine is in period 5, so it can even hold more than eight valence electrons. So let's put our four valence electrons, let's put two right here and two right here; and we've used all of our valence electrons. So this is the Lewis structure for IF3-. If you check your formal charges, you'll find they're all zero. We've used all the electrons that we started with. Everything has octets, and Iodine has more than an octet but that's OK, since it's in period 5.

This is Dr. B., and thanks for watching.

Element Iodine - I

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

Iodine Menu

  • Iodine Page One
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Overview of Iodine

  • Atomic Number: 53
  • Group: 17
  • Period: 5
  • Series: Halogens

Iodine's Name in Other Languages

Number Of Valence Electrons In Iodine

  • Latin: Iodum
  • Czech: Jod
  • Croatian: Jod
  • French: Iode
  • German: Jod - r
  • Italian: Iodio
  • Norwegian: Jod
  • Portuguese: Iôdo
  • Russian: Иод
  • Spanish: Yodo
  • Swedish: Jod

Atomic Structure of Iodine

  • Atomic Radius: 1.32Å
  • Atomic Volume: 25.74cm3/mol
  • Covalent Radius: 1.33Å
  • Cross Section (Thermal Neutron Capture) σa/barns: 6.2
  • Crystal Structure: Orthorhombic
  • Electron Configuration:
    1s2 2s2p6 3s2p6d10 4s2p6d10 5s2p5
  • Electrons per Energy Level: 2,8,18,18,7
    Shell Model
  • Ionic Radius: 2.2Å
  • Filling Orbital: 5p5
  • Number of Electrons (with no charge): 53
  • Number of Neutrons (most common/stable nuclide): 74
  • Number of Protons: 53
  • Oxidation States:±1,5,7
  • Valence Electrons: 5s2p5
    Electron Dot Model

Chemical Properties of Iodine

  • Electrochemical Equivalent: 4.7348g/amp-hr
  • Electron Work Function:
  • Electronegativity: 2.66 (Pauling); 2.21 (Allrod Rochow)
  • Heat of Fusion: 7.824kJ/mol
  • Incompatibilities:
    Ammonia, acetylene, acetaldehyde, powdered aluminum, active metals, liquid chlorine
  • Ionization Potential
    • First: 10.451
    • Second: 19.131
    • Third: 33
  • Valence Electron Potential (-eV): -6.55
Valence electrons calculator

Physical Properties of Iodine

  • Atomic Mass Average: 126.9045
  • Boiling Point: 458.55K 185.4°C 365.7°F
  • Coefficient of lineal thermal expansion/K-1: N/A
  • Conductivity
    Electrical: 8.0E-16 106/cm Ω
    Thermal: 0.00449 W/cmk
  • Density: 4.93g/cc @ 300K
  • Description:
    Halogen solid form: shiny, non-metallic, grayish-black flakes; gas: violet.
  • Elastic Modulus:
    • Bulk: 7.7/GPa
  • Enthalpy of Atomization: 106.7 kJ/mole @ 25°C
  • Enthalpy of Fusion: 7.76 kJ/mole
  • Enthalpy of Vaporization: 20.88 kJ/mole
  • Flammablity Class: Non-combustible solid
  • Freezing Point:see melting point
  • Heat of Vaporization: 20.752kJ/mol
  • Melting Point: 386.65K 113.5°C 236.3°F
  • Molar Volume: 25.74 cm3/mole
  • Physical State (at 20°C & 1atm): Solid
  • Specific Heat: 0.214J/gK

Regulatory / Health

  • CAS Number
    • 7553-56-2
  • RTECS: NN1575000
  • OSHAPermissible Exposure Limit (PEL)
    • 1 ppm = 10.38mg/m3 @ 25°C & 1 atm
    • Ceiling: 0.1 ppm
  • OSHA PEL Vacated 1989
    • Ceiling: 0.1 ppm
  • NIOSHRecommended Exposure Limit (REL)
    • Ceiling: 0.1 ppm
    • IDLH: 2 ppm
  • Routes of Exposure: Inhalation; Ingestion; Skin and/or eye contact
  • Target Organs: Eyes, skin, respiratory system, central nervous system, cardiovascular system
  • 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: 0.057
    • Bone/p.p.m: 0.27
    • Liver/p.p.m: 0.7
    • Muscle/p.p.m: 0.05-0.5
    • Daily Dietary Intake: 0.1-0.2 mg
    • Total Mass In Avg. 70kg human: 12-20 mg

Who / Where / When / How

  • Discoverer: Bernard Courtois
  • Discovery Location: Dijon France
  • Discovery Year: 1811
  • Name Origin:
    Greek: iôdes (violet).
  • Abundance of Iodine:
    • Earth's Crust/p.p.m.: 0.14
    • Seawater/p.p.m.:
      • Atlantic Suface: 0.0489
      • Atlantic Deep: 0.056
      • Pacific Surface: 0.043
      • Pacific Deep: 0.058
    • Atmosphere/p.p.m.: N/A
    • Sun (Relative to H=1E12): N/A
  • Sources of Iodine:
    Occurs on land and in the sea in sodium and potassium compounds. World production of iodine is around 12,000 tons. Primary producing areas are Chile and Japan.
  • Uses of Iodine:
    Required in small amounts by humans. Once used as an antiseptic, but no longer due to its poisonous nature. Used as a disinfectant, in pharmaceuticals, dyes, catalysts and photography.
  • Additional Notes:

Iodine Menu

  • Iodine Page One
  • Iodine Page Two
  • Iodine Page Three

References

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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    This database focuses on the most common chemical compounds used in the home and industry.

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Kenneth Barbalace. Periodic Table of Elements - Iodine - I. EnvironmentalChemistry.com. 1995 - 2021. Accessed on-line: 4/25/2021
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Determine The Number Of Core And Valence Electrons Present In Iodine

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How Many Valence Electrons Iodine

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