Examlex
Which is an incorrect representation of the indicated particle or nucleus?
Neon
Neon is a chemical element with symbol Ne and atomic number 10, known as a noble gas that exhibits a distinct reddish-orange glow when used in lamps and advertising signs.
Synthetic Element
An element that is not found naturally on Earth and can only be created artificially in a laboratory or nuclear reactor.
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.
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