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I don't know about chromophores, but anions are always negative and cations are always positive. The way my teacher had us remember is that 'cat'ions are always 'paw'sative.

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13y ago

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How do you know if a cation is positive or negative?

Cations are always positive, anions are negative.


Positive ions are called what?

A positive ion is called a cation.


What is a positive charge on a ion called?

positive ions are called cations, while negatively charged ions are called anions


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A cation is an ion that carries a positive charge & can combine with certain anions. The charge depends on the metals used.


Does a cation always have a positive charge?

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What are all positive ions called?

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How do cations and anions differ?

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Is sodium a anion are a cation?

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What charge does a monatomic silver cation have?

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