Halogens
by
annettesiu
Last updated 7 years ago
Discipline:
Science Subject:
Chemical Elements
Grade:
8


IODINE (I-53)- vapor irritates eyes and respiratory system- highly toxic- used to make thyroxine
ASTATINE (At-85)- radioactive- one of the rarest natural occuring elements
Group 177 Valence ElectronsNonmetalsChemically Active
HALOGENS
"to produce sea salt"
BROMINE (Br-35)- vaporizes easily- vapor irritates eyes and throat-highly corrosive
FLUORINE (F-9)- one of the most dangerous elements known- attacks skin and throat- reacts explosively with water
CHLORINE (Cl-17)- toxic, can be fatal- attacks the respiratory tract, causing coughing, congestion, and flu-like symptoms
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