Examlex
Which one of the following compounds is peroxide?
Technetium
A radioactive chemical element with symbol Tc and atomic number 43, noteworthy for being the first element to be artificially produced.
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.
Q16: Racemic mixtures of enantiomers do not rotate
Q23: What is the oxidation state of chromium
Q26: A deposit that contains a metal in
Q38: Which one of the following devices converts
Q52: How many structural isomers (include all types
Q57: What happens to the silicon that is
Q79: Which group 3A element is a metalloid
Q82: What is the coefficient of Fe<sup>3</sup><sup>+</sup><sup> </sup>when
Q83: What are the principal components used in
Q102: Positron emission causes a decrease of one