The Oxidation Number of Cr in Cr₂O₇ ^2- is

question 64

Multiple Choice

The oxidation number of Cr in Cr₂O₇ ^2- is:

• A)+2.
• B)-2.
• C)+7.
• D)+6.
• E)none of the above

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Definitions:

Continuous Spectrum

A type of emission spectrum showing an uninterrupted band of colors from red to violet, typically emitted by an incandescent solid, liquid, or gas under pressure.

Wavelengths

The distance between consecutive peaks (or troughs) in a wave, often used in the context of electromagnetic radiation.

Ground State

The lowest energy state of an atom or other particle, which is the most stable and preferred configuration.

Electrons

Fundamental particles that contribute to the electrical properties of atoms, possessing a negative charge and existing in the electron cloud.