Arsenic Valence Electrons

Posted on  by admin
  1. Arsenic Has How Many Valence Electrons
  1. Arsenic is a Main-group element, so a quick simplification can be used. All you need is a Periodic table. Here is the trick: the Group number that element is in will tell you how many electrons the element has.
  2. Name the element in the fourth period of the periodic table with 5 valence electrons. Element name: arsenic (As) Incorrect Name the element in the second period of the periodic table with six 2p electrons. Element name: 2s22p6 incorrect Name the element in the third period of the periodic table with two 3p electrons.

Element Arsenic - As

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

Arsenic Menu

An arsenic atom has 33 electrons and 33 protons with five valence electrons (those that can participate in forming chemical bonds with other electrons) in its outer shell. Arsenic is a crystalline. Arsenic is isoelectronic with nitrogen (they are both Group V elements), so there are 5 valence electrons.A handy way to illustrate these valence electrons is to use Lewis diagrams, also called electron dot diagrams. These diagrams show the symbol of the element with as many dots around it as there are electrons in the outermost energy level.

  • Arsenic Page One
  • Arsenic Page Two
  • Arsenic Page Three

Overview of Arsenic

  • Atomic Number: 33
  • Group: 15
  • Period: 4
  • Series: Metalloids (Nonmetal)

Arsenic's Name in Other Languages

Arsenic Valence Electrons
  • Latin: Arsenicum
  • Czech: Arzen
  • Croatian: Arsen
  • French: Arsenic
  • German: Arsenic - r
  • Italian: Arsenico
  • Norwegian: Arsen
  • Portuguese: Arsênio
  • Russian: Мышьяк
  • Spanish: Arsénico
  • Swedish: Arsenik

Atomic Structure of Arsenic

  • Atomic Radius: 1.33Å
  • Atomic Volume: 13.1cm3/mol
  • Covalent Radius: 1.2Å
  • Cross Section (Thermal Neutron Capture)σa/barns: 4.3
  • Crystal Structure: Rhombohedral
  • Electron Configuration:
    1s2 2s2p6 3s2p6d10 4s2p3
  • Electrons per Energy Level: 2,8,18,5
    Shell Model
  • Ionic Radius: 0.58Å
  • Filling Orbital: 4p3
  • Number of Electrons (with no charge): 33
  • Number of Neutrons (most common/stable nuclide): 42
  • Number of Protons: 33
  • Oxidation States:±3,5
  • Valence Electrons: 4s2p3
    Electron Dot Model

Chemical Properties of Arsenic

  • Electrochemical Equivalent: 0.93177g/amp-hr
  • Electron Work Function: 3.75eV
  • Electronegativity: 2.18 (Pauling); 2.2 (Allrod Rochow)
  • Heat of Fusion: 369.9kJ/mol
  • Incompatibilities:
    halogenated compounds, rhubidium, carbide
  • Ionization Potential
    • First: 9.81
    • Second: 18.633
    • Third: 28.351
  • Valence Electron Potential (-eV): 74

Physical Properties of Arsenic

  • Atomic Mass Average: 74.92159
  • Boiling Point: 876K 603°C 1117°F
  • Coefficient of lineal thermal expansion/K-1: 4.7E-6
  • Conductivity
    Electrical: 0.0345 106/cm Ω
    Thermal: 0.502 W/cmK
  • Density: 5.72g/cc @ 300K
  • Description:
    Gray brittle non-metal flakes.
  • Enthalpy of Atomization: 301.3 kJ/mole @ 25°C
  • Enthalpy of Fusion: 24.44 kJ/mole
  • Enthalpy of Vaporization: 34.76 kJ/mole
  • Flammablity Class:
  • Freezing Point:see melting point
  • Hardness Scale
    • Brinell: 1440 MN m-2
    • Mohs: 3.5
  • Heat of Vaporization: 34.76kJ/mol
  • Melting Point: 1081K 808°C 1486°F
  • Molar Volume: 13.08 cm3/mole
  • Optical Refractive Index: 1.001552
  • Physical State (at 20°C & 1atm): Solid
  • Specific Heat: 0.33J/gK

Regulatory / Health

  • CAS Number
    • 7740-38-2
  • UN/NA ID and ERG Guide Number
    • UN1557
  • RTECS: CG0525000
  • NFPA 704
    • Health: 3
    • Fire: 2
    • Reactivity:
    • Special Hazard:
  • OSHAPermissible Exposure Limit (PEL)
    • TWA: 0.5 mg/m3
  • OSHA PEL Vacated 1989
  • NIOSHRecommended Exposure Limit (REL)
    • No limits set by NIOSH
  • Routes of Exposure: Inhalation; Ingestion; Skin and/or eye contact
  • Target Organs: Skin, respiratory system, kidneys, central nervous system, liver, gastrointestinal tract, reproductive 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: 0.0017-0.09
    • Bone/p.p.m: 0.08-1.6
    • Liver/p.p.m: 0.023-1.61
    • Muscle/p.p.m: 0.009-0.65
    • Daily Dietary Intake: 0.04-1.4 mg
    • Total Mass In Avg. 70kg human: 0.5-15 mg

Who / Where / When / How

  • Discoverer: Alberts Magna
  • Discovery Location: Unknown
  • Discovery Year: 1250
  • Name Origin:
    Greek: arsenikos (male); Latin: arsenicum.
  • Abundance of Arsenic:
    • Earth's Crust/p.p.m.: 1.5
    • Seawater/p.p.m.:
      • Atlantic Suface: 0.00145
      • Atlantic Deep: 0.00153
      • Pacific Surface: 0.00145
      • Pacific Deep: 0.00175
    • Atmosphere/p.p.m.: N/A
    • Sun (Relative to H=1E12): N/A
  • Sources of Arsenic:
    Found in mispickel (arsenopyrite). Mainly produced as a by-product of refining certain sulfide ores. Annual world wide production is around 47,000 tons (As2O3).
  • Uses of Arsenic:
    Used as a deadly poison, in shotgun pellets, metal for mirrors, glass, lasers, light-emitting diodes (LED) and in semiconductors.
  • Additional Notes:
    Arsenic is a carcinogen, associated with lung cancer when inhaled. Contact with skin can result in skin cancer. Also damage to intestines and liver. Toxic when ingested. Found in pesticides and wood preservatives. It is naturally occurring in many household products. It may have been known to ancient civilizations, but was probably first isolated by Magnus who lived between 1193-1280. Many sources reference 1250 as the year of discovery but this may be speculation.

Arsenic Menu

  • Arsenic Page One
  • Arsenic Page Two
  • Arsenic 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.

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.
Valence

Citing this page

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

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

Arsenic number of valence electrons

Linking to this page

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:

<a href='https://EnvironmentalChemistry.com/yogi/periodic/As.html'>echo Periodic Table of Elements: Arsenic - As (EnvironmentalChemistry.com)</a>- Comprehensive information for the element Arsenic - As 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.

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

In almost all cases, chemical bonds are formed by interactions of valence electrons in atoms. To facilitate our understanding of how valence electrons interact. These diagrams show the symbol of the element with as many dots around it as there are electrons in the outermost energy level.

Valence

I'd like you to get some practice by drawing electron dot diagrams for these elements now Arsenic has five. In almost all cases, chemical bonds are formed by interactions of valence electrons in atoms. To facilitate our understanding of how valence electrons interact.

Arsenic. Se. Selenium.

Br. Bromine.

Kr . Chemists use these diagrams to visualize the association of valence electrons To draw a Lewis dot structure for an atom, you must know how many.

The left diagram shows a Lewis dot structure of sodium with. Likewise, they ..

A Lewis structure shows an arsenic atom single bonded to three fluorine atoms.Periodic Table of Elements Element Arsenic - As. Comprehensive data on the chemical element Arsenic is provided on this page; including scores of properties, element names in many languages, most known nuclides of Arsenic.

There are two types of diagrams one is the Lewis diagram the other is the Electron dot diagram. To make the electron dot diagram you put the electron symbol and put a dot on o ne of the sides for each period (you don't count the middle section.)Ne: = Neon dot diagram ' '. The answer would be Arsenic (As).

An electron-dot diagram is a graphical representation of the valence electrons of a certain element. The chemical symbol of an element placed in the middle and the valence electrons are represented by dots/5(7). Arsenic (As) has an atomic mass of Find out about its chemical and physical properties, states, energy, electrons, oxidation and more. Because Arsenic is in group 15 it will receive 5 valence electrons Start out by adding one dot around the symbol for Arsenic.

Arsenic Has How Many Valence Electrons

You'll end up with 4 around it and all you have to do is add another one.What is the correct Lewis structure for arsenic? SocraticLewis Diagrams for Atoms