tonykwok Posted December 24, 2005 Share Posted December 24, 2005 As we know, some metal ions like Calcium ion , potassium ion and sodium ion are colorless, while Cobalt ion, Iron(II)/(III) ion have color. Why ? What is the physical nature beneath that phenomenon ? What theories are involved ? Link to comment Share on other sites More sharing options...
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!Register a new account
Already have an account? Sign in here.Sign In Now