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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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14y 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


What is the cation charge of V3?

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


What are all positive ions called?

Positive ions are called cations. These ions are formed when an atom loses one or more electrons, leading to a net positive charge. Cations are attracted to negatively charged ions (anions) to form stable compounds.


Does a cation always have a positive charge?

No, a cation does not always have a positive charge. A cation is an ion with a positive charge, but the magnitude of the positive charge can vary depending on the number of electrons lost by the atom.


How do cations and anions differ?

They have opposite charges. A cation has a positive (+) charge; an anion has a negative (-) charge.


Is sodium a anion are a cation?

Sodium is an elemental metal, found in the Periodic Table. When it ionises( looses) an electron it becomes the Sodium CATION (Na^(+)). Remember ions that have a positive charge are CATIONS, and ions that have a negative charge are ANIONS. Slo the chloride ion (Cl^-) is an ANION. Collectively they are ions.


What charge does a monatomic silver cation have?

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Which is the cation in mgbr2?

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What the formulae of the cation and anions present in magnesium chloride?

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In a crystal of an ionic compound each cation is surrounded by the number of?

In a crystal of an ionic compound, each cation is typically surrounded by multiple anions. The number of surrounding anions depends on the coordination number of the cation, which is the number of nearest neighbor ions directly surrounding the cation in the crystal lattice.