Chemistry Homework: Colors of Halogens in 3 States & 2 Solvents

[jeremy22511]

Homework Statement

This is an assignment given by my chemistry teacher. Plz help.

State the colors of the first 4 halogens in:
(i) the three states: (s), (l), (g)
(ii) the two solvents: water, organic solvents

The Attempt at a Solution

I had some figured out:
Cl(s): Yellowish-green
Br(s): Brownish-red
I(s): Black
I(g): Purple

But I still can't figure out the other colors.
Would appreciate the help, thanks.

 

[jeremy22511]

Please help!

 

[BlackHole213]

I do not know the answer to your question so I would suggest you talk to your chemistry teacher.

Corrections
-bromine is a liquid at room temperature, not a solid.
-iodine appears twice
-need to include flourine
-flourine, bromine, iodine and chlorine each need a subscript '2' because they are diatomic molecules
-flourine and chlorine are gases

I hope this helps

 

[jeremy22511]

Diatomic molecules... Forgot that >.<
Thanks for the thread. (Colors of chemicals are really frustrating!)

 

[DeeNos]

I would be happy to assist you with this assignment. The colors of halogens in different states and solvents are determined by their electronic structure and the interaction with the surrounding environment. Here are the colors of the first 4 halogens in the specified states and solvents:

(i) In the solid state (s):
- Chlorine (Cl): yellowish-green
- Bromine (Br): brownish-red
- Iodine (I): black
- Fluorine (F): pale yellow

In the liquid state (l):
- Chlorine (Cl): yellow-green
- Bromine (Br): red-brown
- Iodine (I): violet
- Fluorine (F): pale yellow

In the gaseous state (g):
- Chlorine (Cl): pale yellow
- Bromine (Br): red-brown
- Iodine (I): purple
- Fluorine (F): pale yellow

(ii) In water:
- Chlorine (Cl): pale green
- Bromine (Br): orange
- Iodine (I): purple
- Fluorine (F): colorless

In organic solvents:
- Chlorine (Cl): pale yellow
- Bromine (Br): orange
- Iodine (I): violet
- Fluorine (F): colorless

I hope this helps with your assignment. Keep in mind that these colors may vary depending on the concentration and conditions of the experiment. Good luck!