The HalogensGroup 17 on the Periodic TableBy Christine Ngo, Kristal Espana, Rebecca Odusola,Jeremy...
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Transcript of The HalogensGroup 17 on the Periodic TableBy Christine Ngo, Kristal Espana, Rebecca Odusola,Jeremy...
![Page 1: The HalogensGroup 17 on the Periodic TableBy Christine Ngo, Kristal Espana, Rebecca Odusola,Jeremy Bekkouche.](https://reader036.fdocuments.in/reader036/viewer/2022062518/56649f2b5503460f94c45906/html5/thumbnails/1.jpg)
The H
alogens
Group 17 on the P
eriodic Table
By C
hristine Ngo, K
ristal E
spana, Rebecca O
dusola, Jerem
y Bekkouche
![Page 2: The HalogensGroup 17 on the Periodic TableBy Christine Ngo, Kristal Espana, Rebecca Odusola,Jeremy Bekkouche.](https://reader036.fdocuments.in/reader036/viewer/2022062518/56649f2b5503460f94c45906/html5/thumbnails/2.jpg)
● Click to edit Master text stylesSecond level
Third levelFourth levelFifth level
The
Halo
gens
● Group of nonmetals● All elements in this group are reactive● Fluorine, Chlorine, Bromine, Iodine and
Astatine are all in the halogens group.
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Fl
uorine
●
Gas at room
tem
perature and extrem
ely reactive●
Isolated by Henri
Moissan in 1886
●
Can be found in
toothpaste and in w
ater systems
where they help to
prevent tooth decay
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Chlorine
●
Greenish-yellow
gas w
ith a noticeable odor
●
In high concentration it w
ill be toxic
●
Was used in W
orld W
ar I as a poison gas
●
Prepared by
Scheele in later
1700, proved tobe an elem
ent by D
avy in 1810
●
Used in sw
imm
ing pools to get rid of any bacteria
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Bromine
●
Reddish-brow
n fuming
liquid with a chlorine-like
smell.
●
Isolated in pure form by
Balard in 1826.
●
Only non-m
etal that is liquid at norm
al room
conditions.
●
Can cause painful burns
that heal slowly w
hen applied on the skin.
●
Used for
dyes,disinfectants,and photographic chem
icals.
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Iodine
●
It was discovered in
1811 by Curtis
●D
ark gray solid with
a faint metallic luster
●
When heated, it turns
to a violet gas
●
Important elem
ent in the hum
an diet
●
Crucial for a properly
working thyroid gland
●
Used in table salt
●
Used m
edically for the thyroid and anything that has to deal w
ith that gland.
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Astatine
●
Last of the known
halogens in 1940 by C
orson and others at the university in C
alifornia.
●
It is radioactive and its nam
e, from the
Greek astatos,
means “uristable”
●
Astatine is expected
to react like others halogens but less active
●
Should be a tiny
quantities of astatine in the earth's crust.
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