https://padlet.com/rimmym/halogens We love chemistry en-us 2019-01-01 18:08:47 UTC 2025-12-23 23:22:08 UTC hello@padlet.com rimmym https://padlet.com/rimmym/halogens/wish/316971755 Aishwarya
Pranav]]> 2019-01-01 18:11:00 UTC https://padlet.com/rimmym/halogens/wish/316971755 18IB0009 https://padlet.com/rimmym/halogens/wish/316999138

The color of the halogens become darker as you go down the group.

• Fluorine is a pale yellow
• Chlorine is a yellow-green
• Bromine is red-brown

http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_21c/chemical_patterns/elementsrev5.shtml

]]> 2019-01-02 05:07:01 UTC https://padlet.com/rimmym/halogens/wish/316999138 18IB0013 https://padlet.com/rimmym/halogens/wish/316999202 - poor thermal and electrical conductors in all phases, and as solids they are brittle and crumbly.
-The halogens have distinctive, unpleasant odors, will burn exposed flesh, and are toxic.
http://www.chemistryexplained.com/Ge-Hy/Halogens.html]]> 2019-01-02 05:09:54 UTC https://padlet.com/rimmym/halogens/wish/316999202 18IB0009 https://padlet.com/rimmym/halogens/wish/316999230 Reactions with Halogens

• Metal + Halogen -> Metal Halide
• Sodium + Chlorine → Sodium Chloride
• 2Na(s) + Cl₂(g) → 2NaCl(s)

Displacement Reactions

• Chlorine + Sodium Bromide → Sodium Chloride + Bromine
• Cl₂(aq) + 2NaBr(aq) → 2NaCl(aq) + Br₂(aq)
   

http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_21c/chemical_patterns/elementsrev6.shtml

]]> 2019-01-02 05:10:51 UTC https://padlet.com/rimmym/halogens/wish/316999230 18IB0013 https://padlet.com/rimmym/halogens/wish/316999255 -extremely reactive due to electron gain affinity.
-electronegativity high


]]> 2019-01-02 05:11:45 UTC https://padlet.com/rimmym/halogens/wish/316999255 18IB0009 https://padlet.com/rimmym/halogens/wish/316999320

 Halogens are bleaching agents

• ex. Chlorine is used to bleach wood pulp to make white paper

Halogens (not living) bacteria

• ex. Chlorine is added to the water in swimming pools to (not living) any bacteria that may be harmful for the swimmers

Halogens are extremely poisonous

• Iodine can damage the skin if handled improperly

http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_21c/chemical_patterns/elementsrev6.shtml

]]> 2019-01-02 05:14:14 UTC https://padlet.com/rimmym/halogens/wish/316999320 18IB0009 https://padlet.com/rimmym/halogens/wish/316999347 - Halogens have low melting and boiling points


]]> 2019-01-02 05:15:50 UTC https://padlet.com/rimmym/halogens/wish/316999347 18IB0013 https://padlet.com/rimmym/halogens/wish/316999479  Organic compounds containing halogens are used as fire-retardants (halons), as refrigerants (Freons), and in nonstick coatings (Teflon). Silver bromide and silver iodide have been used in photographic emulsions since the early days of photography.]]> 2019-01-02 05:21:53 UTC https://padlet.com/rimmym/halogens/wish/316999479 18IB0009 https://padlet.com/rimmym/halogens/wish/316999638 2019-01-02 05:27:05 UTC https://padlet.com/rimmym/halogens/wish/316999638