• The atomic number is 34  and the atomic mass is  78,96• In group 16 and period 4• Non-metal• Symbol: Se
• Melting point is 217oC,  Boiling point is 684.9oC• Solid at room temperature• Color: gray• Density: 4.81 g/cm3
• A small amount of selenium  is good for your health!• Also used as a catalyst in  some chemical reactions• Manufacturing...
• Selenium dioxide  (SeO2) Selenium  trioxide (SeO3)• Selenium chloride  (Se2Cl2)• Mercury Selenide  (HgSe)  Lead Selenide...
• Very important to our health.• Recent discoveries say that selenium is a  treatment to HIV symptoms• Essential trace min...
Selenium
Selenium
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Selenium

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  • Selenium

    1. 1. • The atomic number is 34 and the atomic mass is 78,96• In group 16 and period 4• Non-metal• Symbol: Se
    2. 2. • Melting point is 217oC, Boiling point is 684.9oC• Solid at room temperature• Color: gray• Density: 4.81 g/cm3
    3. 3. • A small amount of selenium is good for your health!• Also used as a catalyst in some chemical reactions• Manufacturing products• Treatment to HIV symptoms!
    4. 4. • Selenium dioxide (SeO2) Selenium trioxide (SeO3)• Selenium chloride (Se2Cl2)• Mercury Selenide (HgSe) Lead Selenide (PbSe) Zinc Selenide (ZnSe) Copper Indium Gallium Diselenide
    5. 5. • Very important to our health.• Recent discoveries say that selenium is a treatment to HIV symptoms• Essential trace mineral to our body

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