Elements
Published on Nov 27, 2015
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PRESENTATION OUTLINE
SELENIUM, SE
- Atomic Number: 34 Average Mass: 79
- Slenium has electric conductibility.
- This is a nonmetal and sometimes a matalloid.
- Selenium is a solid with a melting point of 221C or 430F.
- Selenium has a boiling point of 685C or 1,265F.
YTTRIUM
- Atomic number: 39 sybol: Y
- it is a flammable solid
- Yttrium is a metal
- Yttrium is found in nature as a solid and is a rare earth element
- COOL FACT: yttrium is found in rocks on the moon!!! OMG
SODIUM
- Atomic # 11 Mass # 23
- Alkali metal, Conductive, Solid at room temperature
- Sodium burns when it touches water
- Sodium is silvery-white metal with a waxy appearance
- Found in the earths crust, taking up 2.6% of earths crust
SILICON
- Atomic number: 14 Mass number: 28.
- Semi-metallic.
- Silicon conducts electricity.
- Silicon is combustable.
- Silicon cannot be found in nature.
