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Pronunciation varies by accent · noun
A heavy isotope of the simplest alkali metal, (symbol Li) with an atomic number of 3 and containing 8 neutrons. Metalithium is an artificial isotope produced by bombarding Lithium 7 with neutrons. It is radioactive, with a half-life of 0.84 seconds..
Use metalithium when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Metalithium means A heavy isotope of the simplest alkali metal, (symbol Li) with an atomic number of 3 and containing 8 neutrons. Metalithium is an artificial isotope produced by bombarding Lithium 7 with neutrons. It is radioactive, with a half-life of 0.84 seconds..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use metalithium where its definition matches the intended context.
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