IODINE

• The atomic# is 53
• The symbol is I
• The atomic weight(mass) is 126.7

IODINE PROPERTIES

• PHYSICAL; solid,nonmetallic,nonconductor,
• Nearly black solid,shiney, and powdery
• CHEMICAL; not flammable, doesn't react with water
• MISCELLANEOUS; used before surgery to kill germs,
• Found in earth's crust, its greek for violet ( GROUP7a)

SULFUR
16
s
32.07

PROPERTIES

• Physical properties- pale yellow, non-metalic
• Boiling point: 444.6 melting point- 112.8 celcius, 2 forms A & B form
• Chemical properties- flamable, strong odor, does not react with water
• Does not react with dilute non-oxidizing acids
• Miscellaneous- gas leak detector, solid, found in volcanoes, hot springs & meteorites

LUTETIUM

• the atomic number is 71
• the symbol is LU
• the atomic mass is 174.97

LUTETIUM PROPERTIES

• PHYSICAL; silvery white metal, solid conductive metal
• resists corrision in dry but not in moist air
• CHEMICAL; flammable & reacts quickly with hot & slowly with cold water
• MISCELLANEOUS; the entire global productuon of lutetium is ten tons
• the element group is the alkali metals

BERYILLUM

• Atomic number is 4
• The symbol is Be
• Atomic mass is 9.01

PROPERTIES

• Physical- metal, non magnetic, high thermal conductivity, solid, black
• Chemical- may form beryillum hydroxide, is explosive
• Miscellaneous- is found in minerals, is in 2a, is called miracle metal