ChalcogensGroup 6 Elements“Oxygen Group"By: Kayla Fattell, Paige Gale, and Erika D'Ippolito
  • Includes 6 elements:
    • Oxygen (O)
    • Sulfur (S)
    • Selenium (Se)
    • Tellurium (Te)
    • Polonium (Po)
    • Livermorium (Lv)
  • The first five discovered between 1829-1898
  • Livermorium was created by man in 2000
  • Chalcogen means “ore-former”; these elements are associated with metal-bearing minerals.
  • They form ions with a -2 charge.

  • Oxygen is a nonmetal that is colorless, odorless, and tasteless.
  • It is the most common element found on Earth and used by every living organism.
  • Its electron configuration is [He]2s22p4 and is very electronegative, therefore easily attracting and gaining electrons.
  • It is also very reactive and forms compounds with nearly every other element.
  • Its abundance is huge in the world; it is 20% of the air, 46% of the crust, and 89% of the water.
  • Oxygen’s atomic number is 8, its mass is 16, its boiling point is -182.95C, and its melting point is -218.79C.

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  • Sulfur is a nonmetal that is a brittle solid, that is usually pale yellow and tasteless.
  • Other than pure sulfur, it has a very strong, distinguishable odor.
  • It is the tenth most abundant source, found in underground sources such as, wells and natural gas and petroleum crudes.
  • Sulfur is very reactive and forms many compounds, like carbon sulfate, ammonium sulfide, and sulfur dioxide.
  • Sulfur is used for many different reasons; it is a component in gun powder and some fertilizers, used to bleach dried fruits, and it is also a good insulator.
  • The electron configuration is [Ne]3s23p4.
  • Sulfur’s atomic number is 16, its mass is 32, its boiling point is 444.60C, and its melting point is 119.6C.

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  • Selenium is the last nonmetal in group 6A. It’s a dark colored, normally black or grey solid.
  • Selenium’s atomic number is 34 and it has a mass of 78.96.
  • Its melting point is 493K and its boiling point is 958K.
  • Selenium’s electron configuration is [Ar]3d104S24p4
  • It got its name from Greek word selene meaning moon.
  • It is usually found as selenide SE2- or sulfide S2-.
  • Selenium is a good conductor of electricity when light is present
  • This element can be toxic at more than 5 mg.

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  • Tellurium is the only metalloid of group 6A.
  • It can be found as a silvery solid in various ores. However it can not be found alone.
  • Its melting point is 723K and its boiling point is 1263K.
  • Tellurium’s electron configuration is [Kr]4d105s25p4.
  • The name Tellurium is derived from Latin word tellus which means Earth.
  • It is used to create alloys with stainless steel and copper to increase machinability.
  • Tellurium is also very toxic. If it is exposed to as little as 0.01 mg/m2.
  • Tellurium is a semiconductor material and is slightly photosensitive.

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  • Polonium is a radioactive metal containing a silvery appearance.
  • This element contains more isotopes than any other element.
  • The discovery of Polonium was led by the discovery of Radium by Marie Curie.
  • Polonium is named after the country Poland.
  • Polonium has been found in tobacco as a contaminant and in uranium ores.
  • Polonium’s atomic number is 84, its mass is 209, its melting point is 254.0C and its boiling point is at 962.0C.
  • The electron configuration is [Xe] 6s2 4f14 5d10 6p4.

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  • Livermorium is a radioactive man-made element created in 2000.
  • Ununhexium was this elements temporary name until the name Livermorium was chosen by IUPAC.
  • Named in honor of Lawrence Livermore National Lab and Livermore, CA where many element discoveries were made.
  • Livermorium was created via nuclear bombardment and has only been produced in minute amounts.
  • The electron configuration is [Rn] 5f14 6d10 7s2 7p4
  • Livermorium’s atomic number is 116, and its mass is 292.
  • Livermorium is expected to have similar properties to Polonium.
  • Livermorium is harmful due to its radioactivity.

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1. Why is this group called chalcogens?
a. All of the elements in the group have high boiling points.
b. The elements in this group all can be found in ores.
c. This group has metals, semi-metals and nonmetals
d. Oxygen’s other name is chalcogen.

2. What was the last element found and what element was it?
a. 2000, Livermorium
b. 2003, Livermorium
c. 1898, Oxygen
d. 2000, Selenium

3. What color is Sulfur normally found as?
a. green
b. blue
c. bright pink
d. pale yellow

4. What is the only metalloid in group 6A?
a. Silicon
b. Tellurium
c. Polonium
d. Argon

5. What was Livermorium’s first name?
a. Livermorine
b. Ununhelium
c. Carbon
d. Ununhexium

Works Cited

"Chalcogen." Wikipedia. N.p., 21 2012. Web. 27 Nov 2012. <>.

"Group 16." Chemical Data. N.p.. Web. 27 Nov 2012. <>.

"Group 6A-The Chalcogens." The Parts of the Periodic Table. N.p.. Web. 27 Nov 2012. < >.

"Livermorium." Chemicool. N.p.. Web. 27 Nov 2012. <>.

"Oxygen Group Element." Encyclopedia Britannica. N.p.. Web. 27 Nov 2012. <>.

"Polonium: The Essentials." WebElements. N.p.. Web. 27 Nov 2012. <>.

"The Chalcogens." Chem Topics. N.p.. Web. 27 Nov 2012. <>.