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Atomic # 4

By: Tara Lay
   The name of the chemical
    element beryllium is derived
    from the Greek word beryllos=
    pale. From the mineral beryl

   In 1798 Louis-Nicholas
    Vauquelin, a French chemist,
    discovered that an unknown
    element was present in
    emeralds and beryl.

   Beryllium was first found in
    emeralds from the mountains of
    France and California.
   Beryllium is a solid at room
    temperature with the density
    of 1.85 g/cm3
   Color: gray.
   Melting point: 1278 °C
   Boiling point: 2970.0 °C
   It is also required in those
    applications where an
    excellent head conductor,
    with high strength and
    hardness and with a very
    high melting point is needed.
    Even it should act as an
    electrical insulator.
   Beryllium is found in             Scientists know that the
    approximately 30 mineral           current exposure limit for
    species, including beryl           beryllium set by the
    (3BeO Al2O3 6SiO2),                Occupational Safety and
    bertrandite (4BeO 2SiO2            Health Administration of 2
    H2O), chrysoberyl, and             micrograms of airborne
    phenacite. The metal may be        beryllium per cubic meter of
    prepared by reducing               air per 8-hour day leaves a
    beryllium fluoride with            significant percentage of
    magnesium metal.                   workers, at risk.
                                       Simply reducing current
   Beryllium is widely used in        exposure limits may not
    spite of its relatively high       reduce the number of workers
    cost of over $400 per pound        stricken with chronic
    because for certain critical       beryllium disease (CBD),
    applications it performs           which results in death in about
    better than alternatives.          30% of sufferers.
   Beryllium is relatively            Beryllium is alloyed with
    transparent to X-rays and is        copper (2% beryllium, 98%
    used to make windows for            copper) to form a wear
    X-ray tubes. When exposed           resistant material, known as
    to alpha particles, such as         beryllium bronze, used in
    those emitted by radium or          gyroscopes and other devices
    polonium, beryllium emits           where wear resistance is
    neutrons and is used as a           important.
    neutron source. Beryllium is       Beryllium is alloyed with
    also used as a moderator in         nickel (2% beryllium, 98%
    nuclear reactors                    nickel) to make springs, spot-
   Used in spacecraft, missiles,       welding electrodes and non-
    aircraft                            sparking tools.
   In the making of gyroscopes,       Other beryllium alloys are
    various computer                    used in the windshield, brake
    equipment, watch springs            disks and other structural
    and instruments that                components of the space
    requires light-weight,              shuttle.
    rigidity and dimensional
    stability.
   Beryllium and its
    compounds are toxic and
    should not be tasted to verify
    the metal's sweetness.
   Beryllium metal is extremely
    stiff and lightweight and has
    a modulus of elasticity
    almost 50 percent greater
    than that of steel with only
    about one-fourth the weight
   Beryllium has one of the
    highest melting points of the
    light metals
"It's Elemental - The Element Beryllium." Science Education at Jefferson Lab. Web. 18 Nov. 2011.
<http://education.jlab.org/itselemental/ele004.html>.
"Beryllium Minerals,Beryllium Properties,Beryllium Uses,Beryllium Information."
Mineral Industries,World Minerals,Mineral Information,Properties of Minerals. Web. 18 Nov.
2011. <http://www.mineralszone.com/minerals/beryllium.html>.
"Chemical Elements.com - Beryllium (Be)." Chemical Elements.com - An Interactive Periodic
Table of the Elements. Web. 18 Nov. 2011.
<http://www.chemicalelements.com/elements/be.html>.
"Beryllium Facts - Periodic Table of the Elements." Chemistry - Periodic Table, Chemistry
Projects, and Chemistry Homework Help. Web. 18 Nov. 2011.
<http://chemistry.about.com/od/elementfacts/a/beryllium.htm>.

"Understanding Beryllium." American Machinist. Web. 18 Nov. 2011.
<http://www.americanmachinist.com/304/Issue/Article/False/21682/Issue>.

"TOXIC BERYLLIUM: New Solutions for a Chronic Problem | Environmental Health
Perspectives | Find Articles." Find Articles | News Articles, Magazine Back Issues & Reference
Articles on All Topics. Web. 18 Nov. 2011.
<http://findarticles.com/p/articles/mi_m0CYP/is_2_109/ai_77276621/>.

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Beryllium (Tara Lay)

  • 1. Atomic # 4 By: Tara Lay
  • 2. The name of the chemical element beryllium is derived from the Greek word beryllos= pale. From the mineral beryl  In 1798 Louis-Nicholas Vauquelin, a French chemist, discovered that an unknown element was present in emeralds and beryl.  Beryllium was first found in emeralds from the mountains of France and California.
  • 3. Beryllium is a solid at room temperature with the density of 1.85 g/cm3  Color: gray.  Melting point: 1278 °C  Boiling point: 2970.0 °C  It is also required in those applications where an excellent head conductor, with high strength and hardness and with a very high melting point is needed. Even it should act as an electrical insulator.
  • 4. Beryllium is found in  Scientists know that the approximately 30 mineral current exposure limit for species, including beryl beryllium set by the (3BeO Al2O3 6SiO2), Occupational Safety and bertrandite (4BeO 2SiO2 Health Administration of 2 H2O), chrysoberyl, and micrograms of airborne phenacite. The metal may be beryllium per cubic meter of prepared by reducing air per 8-hour day leaves a beryllium fluoride with significant percentage of magnesium metal. workers, at risk.  Simply reducing current  Beryllium is widely used in exposure limits may not spite of its relatively high reduce the number of workers cost of over $400 per pound stricken with chronic because for certain critical beryllium disease (CBD), applications it performs which results in death in about better than alternatives. 30% of sufferers.
  • 5. Beryllium is relatively  Beryllium is alloyed with transparent to X-rays and is copper (2% beryllium, 98% used to make windows for copper) to form a wear X-ray tubes. When exposed resistant material, known as to alpha particles, such as beryllium bronze, used in those emitted by radium or gyroscopes and other devices polonium, beryllium emits where wear resistance is neutrons and is used as a important. neutron source. Beryllium is  Beryllium is alloyed with also used as a moderator in nickel (2% beryllium, 98% nuclear reactors nickel) to make springs, spot-  Used in spacecraft, missiles, welding electrodes and non- aircraft sparking tools.  In the making of gyroscopes,  Other beryllium alloys are various computer used in the windshield, brake equipment, watch springs disks and other structural and instruments that components of the space requires light-weight, shuttle. rigidity and dimensional stability.
  • 6. Beryllium and its compounds are toxic and should not be tasted to verify the metal's sweetness.  Beryllium metal is extremely stiff and lightweight and has a modulus of elasticity almost 50 percent greater than that of steel with only about one-fourth the weight  Beryllium has one of the highest melting points of the light metals
  • 7. "It's Elemental - The Element Beryllium." Science Education at Jefferson Lab. Web. 18 Nov. 2011. <http://education.jlab.org/itselemental/ele004.html>. "Beryllium Minerals,Beryllium Properties,Beryllium Uses,Beryllium Information." Mineral Industries,World Minerals,Mineral Information,Properties of Minerals. Web. 18 Nov. 2011. <http://www.mineralszone.com/minerals/beryllium.html>. "Chemical Elements.com - Beryllium (Be)." Chemical Elements.com - An Interactive Periodic Table of the Elements. Web. 18 Nov. 2011. <http://www.chemicalelements.com/elements/be.html>. "Beryllium Facts - Periodic Table of the Elements." Chemistry - Periodic Table, Chemistry Projects, and Chemistry Homework Help. Web. 18 Nov. 2011. <http://chemistry.about.com/od/elementfacts/a/beryllium.htm>. "Understanding Beryllium." American Machinist. Web. 18 Nov. 2011. <http://www.americanmachinist.com/304/Issue/Article/False/21682/Issue>. "TOXIC BERYLLIUM: New Solutions for a Chronic Problem | Environmental Health Perspectives | Find Articles." Find Articles | News Articles, Magazine Back Issues & Reference Articles on All Topics. Web. 18 Nov. 2011. <http://findarticles.com/p/articles/mi_m0CYP/is_2_109/ai_77276621/>.