Naked Science Forum

Non Life Sciences => Chemistry => Topic started by: Raghavendra on 18/03/2009 07:11:21

Title: To molecules or atoms have colour?
Post by: Raghavendra on 18/03/2009 07:11:21

 
1) do molecules/atoms have color !! if not why visible light shows color of different wavelength, and frequency.

2) consider our universe was not black !!! what was the possibilites? would there be a atoms,

3) Do you agree that our universe is black so it has atoms ? what force exists behind?

_{Mod edit - yet another subject changed to be a question.  Please make sure you do this in future.}

Title: Re: To molecules or atoms have colour?
Post by: Chemistry4me on 18/03/2009 08:21:00

Are you studying chemistry or physics Raghavendra/Sachin?

Title: Re: To molecules or atoms have colour?
Post by: Raghavendra on 18/03/2009 08:24:19

Both even maths and Computer science, electronics etcc.......

   raghavendra

why?

Title: Re: To molecules or atoms have colour?
Post by: lancenti on 18/03/2009 11:43:41

The phenomenon of colour is simply the receptors on our eyes sending electrical impulses to the brain when they are struck with a certain wavelength of light. The brain simply maps this out into images and colours.

As to whether a single atom has colour, that depends on whether it absorbs any particular wavelength of energy. Read: Absorption Spectrum and Emission Spectrum

Title: To molecules or atoms have colour?
Post by: Bored chemist on 18/03/2009 20:19:12

I don't understand why you think the universe is black.
http://www.pha.jhu.edu/~kgb/cosspec/

Title: To molecules or atoms have colour?
Post by: Raghavendra on 19/03/2009 12:23:35

ok...... thank uuuuuuuuuuuuuuuuuu