Halogens year 10Opt

Halogens year 10Opt - Red Iodine (I) 2,8,18,18,7 Name:...

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The Halogens By Tom AND Chris Visit www.teacherpowerpoints.com For 100’s of free powerpoints
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The Halogens The halogens are a group of non- metals in the periodic table They all have seven electrons in their outer shell this makes them all really reactive; they only have to gain one more electron to fill their outer shell. Unlike Group One the elements get less reactive as you go down the group
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Fluorine (F) 2,7 Name: Fluorine Symbol: F Atomic Number: 9 Atomic Mass: 18.998404 amu Melting Point: -219.62 °C Boiling Point: -188.14 °C Number of Protons/Electrons: 9 Number of Neutrons: 10 Colour: Greenish
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Chlorine (Cl) 2,8,7 Name: Chlorine Symbol: Cl Atomic Number: 17 Atomic Mass: 35.4527 amu Melting Point: -100.98 °C Boiling Point: -34.6 °C Number of Protons/Electrons: 17 Number of Neutrons: 18 Colour: green
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Bromine (Br) 2,8,18,7 Name: Bromine Symbol: Br Atomic Number: 35 Atomic Mass: 79.904 amu Melting Point: -7.2 °C Boiling Point: 58.78 °C Number of Protons/Electrons: 35 Number of Neutrons: 45 Colour:
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Unformatted text preview: Red Iodine (I) 2,8,18,18,7 Name: Iodine Symbol: I Atomic Number: 53 Atomic Mass: 126.90447 amu Melting Point: 113.5 C Boiling Point: 184.0 C Number of Protons/Electrons: 53 Number of Neutrons: 74 Colour: blackish Astatine (At) 2,8,18,32,18,7 Name: Astatine Symbol: At Atomic Number: 85 Atomic Mass: (210.0) amu Melting Point: 302.0 C Boiling Point: 337.0 C Number of Protons/Electrons: 85 Number of Neutrons: 125 Colour: Unknown Uses of Fluorine The main use of fluorine is toothpaste even though it isnt as fluorine itself but instead as fluoride , a compound of fluorine. Uses of Chlorine Chlorine is used mostly to kill bacteria or as a bleach. Chlorine bleaches a piece of universal indicator paper white. Uses of Bromine Bromine is one of the main ingredients in camera films (as silver bromide). Uses of Iodine When dissolved in water, iodine can be used as a strong antiseptic or as a test for starch. Thank you for watching !...
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This note was uploaded on 11/09/2011 for the course CHEM 210 taught by Professor Wilson during the Fall '10 term at BYU.

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Halogens year 10Opt - Red Iodine (I) 2,8,18,18,7 Name:...

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