Xe Valence Electrons



  1. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used. The electron configuration can be visualized as the core electrons, equivalent to the noble gas of the preceding period, and the valence electrons (e.g. Xe 6s2 for barium). Oxidation States.
  2. Xe does not follow the octet rule. It actually bonds. It will hold more than 8 electrons. Xenon having valence electrons in the 4th energy level, will also have access to the 4d sublevel, thus allowing for more than 8 electrons. XeF 2 is dsp 3 hybridized and contains 3 lone pair and 2 bonding pairs of valence electrons around the Xenon.
  3. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used. The electron configuration can be visualized as the core electrons, equivalent to the noble gas of the preceding period, and the valence electrons (e.g. Xe 6s2 for barium). Oxidation States.
  1. Beryllium
  2. Xe Atom Valence Electrons
  3. Xenon Valence Electrons

Because some elements in the 'p' category of the periodic table of elements use the empty 'd' slots to put extra electrons. Since the 'd' shell is one behind the 'p' shell, XE (a 'p 5' element) uses the empty 'D 5' shell to put the extra 4 electrons. Its an anomaly in chemistry that rarely happens in nature. Helium is an exception: despite having a 1s 2 configuration with two valence electrons, and thus having some similarities with the alkaline earth metals with their ns 2 valence configurations, its shell is completely full and hence it is chemically very inert and is usually placed in group 18 with the other noble gases.

Drawing the Lewis Structure for XeF4

Viewing Notes:

  • In the XeF4 Lewis structure Xe is the least electronegative and goes at the center of the structure.
  • The Lewis structure for XeF4 requires you to place more than 8 valence electrons on Xe.
  • Xenon (Xe) can have more than 8 valence electrons in your Lewis structure.
  • Hydrogen (H) only needs two valence electrons to have a full outer shell.
  • You'll want to calculate the formal charges on each atom to make sure you have the best Lewis structure for XeF4.


See the Big List of Lewis Structures

Transcript: Hi, this is Dr. B. Let's do the XeF4 Lewis structure. Xenon has 8 valence electrons. Fluorine has 7, but we have four of the Fluorines; so that gives us 8 plus 28: 36 valence electrons. We'll put Xenon in the center, it's the least electronegative; and then Fluorines on the outside, all four of them. We'll start by putting two between atoms to form chemical bonds, and then around the Fluorines. We have 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, and 32.

Xe core electrons

So we have 32, that gives us four more valence electrons that we need to deal with. Probably not going to be a double bond. Fluorine's very electronegative, and really doesn't form those double bonds. But I know that Xenon can have more than eight in its outer shell, so I'm going to take these extra two pair of electrons right here, and then put them right here, and that'll give me a total of 36 valence electrons that I've used. Everything has octets; and Xenon, it has more than an octet, but that's OK for Xenon.

If you wanted to check it, you could look at the formal charges and you'd find out that this is the best structure for XeF4, xenon tetrafluoride. This is Dr. B., and thanks for watching.

Element Xenon - Xe

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

Xenon Menu

  • Xenon Page One
  • Xenon Page Two

Overview of Xenon

  • Atomic Number: 54
  • Group: 18
  • Period: 5
  • Series: Noble Gasses
How

Xenon's Name in Other Languages

Beryllium

  • Latin: Xenon
  • Czech: Xenon
  • Croatian: Ksenon
  • French: Xénon
  • German: Xenon - s
  • Italian: Xeno
  • Norwegian: Xenon
  • Portuguese: Xenônio
  • Russian: Ксенон
  • Spanish: Xenón
  • Swedish: Xenon

Atomic Structure of Xenon

  • Atomic Radius: 1.24Å
  • Atomic Volume: 37.3cm3/mol
  • Covalent Radius: 1.31Å
  • Cross Section (Thermal Neutron Capture) σa/barns: 23.9
  • Crystal Structure: Cubic face centered
  • Electron Configuration:
    1s2 2s2p6 3s2p6d10 4s2p6d10 5s2p6
  • Electrons per Energy Level: 2,8,18,18,8
    Shell Model
  • Ionic Radius:
  • Filling Orbital: 5p6
  • Number of Electrons (with no charge): 54
  • Number of Neutrons (most common/stable nuclide): 77
  • Number of Protons: 54
  • Oxidation States: 0
  • Valence Electrons: 5s2p6
    Electron Dot Model

Chemical Properties of Xenon

  • Electrochemical Equivalent:
  • Electron Work Function:
  • Electronegativity: 0 (Pauling); 2.4 (Allrod Rochow)
  • Heat of Fusion: 2.297kJ/mol
  • Incompatibilities:
  • Ionization Potential
    • First: 12.13
    • Second: 21.21
    • Third: 32.1
  • Valence Electron Potential (-eV):

Physical Properties of Xenon

  • Atomic Mass Average: 131.29
  • Boiling Point: 165.18K -107.97°C -162°F
  • Coefficient of lineal thermal expansion/K-1: N/A
  • Conductivity
    Electrical:
    Thermal: 0.0000569 W/cmK
  • Density: 5.9g/L @ 273K & 1atm
  • Description:
    Colorless, odorless, tasteless noble gas.
  • Enthalpy of Fusion: 2.3 kJ/mole
  • Enthalpy of Vaporization: 12.64 kJ/mole
  • Flammablity Class:
  • Freezing Point:see melting point
  • Heat of Vaporization: 12.636kJ/mol
  • Melting Point: 161.45K -111.7°C -169.1°F
  • Molar Volume: 42.9 cm3/mole
  • Optical Refractive Index: 1.000702
  • Physical State (at 20°C & 1atm): Gas
  • Specific Heat: 0.158J/gK

Regulatory / Health

Xe Valence Electrons
  • CAS Number
    • 7440-63-3
  • 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: trace
    • Bone/p.p.m: nil
    • Liver/p.p.m: nil
    • Muscle/p.p.m: nil
    • Daily Dietary Intake: n/a
    • Total Mass In Avg. 70kg human: n/a
  • Discovery Year: 1898
  • Name Origin:
    Greek: xenos (stranger).
  • Abundance of Xenon:
    • Earth's Crust/p.p.m.: 0.000002
    • Seawater/p.p.m.: 0.0001
    • Atmosphere/p.p.m.: 0.086
    • Sun (Relative to H=1E12): N/A
  • Sources of Xenon:
    Obtain from the small quantities in liquified air. Annual world wide production is around 0.6 tons.
  • Uses of Xenon:
    Used in electronic flashes, projection lamps, UV lamps, and other powerful lamps. Also used in bubble chambers and paint testers.
  • Additional Notes:

Xenon Menu

  • Xenon Page One
  • Xenon Page Two

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.

Related Resources

  • Anatomy of the Atom
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  • 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.

Xe Atom Valence Electrons

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Xenon Valence Electrons

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