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.
A positive ion is called a cation.
positive ions are called cations, while negatively charged ions are called anions
A cation is an ion that carries a positive charge & can combine with certain anions. The charge depends on the metals used.
Cations are always positive, whatever they're of. Ooh, or is that anions? Yeah, on second thoughts I think cations are negative. Hang on a minute, I'll check......nope, I was right first time. Cations are positive.
In the compound MgBr₂, the cation is magnesium (Mg²⁺). Magnesium donates two electrons to achieve a stable electron configuration, resulting in a positive charge. The anions in this compound are bromide ions (Br⁻), which balance the charge of the cation. Thus, MgBr₂ is composed of one magnesium cation and two bromide anions.
Cations are always positive, anions are negative.
A positive ion is called a cation.
positive ions are called cations, while negatively charged ions are called anions
A cation is an ion that carries a positive charge & can combine with certain anions. The charge depends on the metals used.
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.
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.
They have opposite charges. A cation has a positive (+) charge; an anion has a negative (-) charge.
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.
Cations are always positive, whatever they're of. Ooh, or is that anions? Yeah, on second thoughts I think cations are negative. Hang on a minute, I'll check......nope, I was right first time. Cations are positive.
In the compound MgBr₂, the cation is magnesium (Mg²⁺). Magnesium donates two electrons to achieve a stable electron configuration, resulting in a positive charge. The anions in this compound are bromide ions (Br⁻), which balance the charge of the cation. Thus, MgBr₂ is composed of one magnesium cation and two bromide anions.
The cation in magnesium chloride is Mg2+ and the anion is Cl-.
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.