element 109
- noun
- /ˈɛlɪmənt wʌn hʌndrəd naɪn/
- Specialized
- Scientists were able to produce element 109 for the first time in 1982.
Examples
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The decay of element 109 is studied to understand properties of superheavy elements.
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Before being given its official name, element 109 was referred to by its atomic number.
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The element 109 was discovered in 1982.
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Researchers have studied element 109 extensively.
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In nuclear chemistry, element 109 is known as meitnerium and is highly radioactive.
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Researchers recently published new findings about element 109 and its isotopes.
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The properties of element 109 make it a fascinating subject for scientific research.
Synonyms
A man-made radioactive element that scientists make in a laboratory and do not find in nature
A very heavy radioactive metal that scientists make in labs and has atomic number 109
The chemical symbol for meitnerium, a very heavy radioactive element with number 109
Surface Forms
Morphology
element + 109
The phrase 'element 109' is compositionally built from 'element' (a chemical substance defined by atomic number) and the numeral '109', so a learner who knows 'element' and numbers can infer it denotes the chemical element with atomic number 109 (even if they do not know the specific name meitnerium). This numeric naming pattern for elements is standard and cross-linguistically transparent, making the meaning directly derivable from the parts.
Etymology
Element 109 got its name because scientists used the word element and the number 109 as a simple label when they first made this new, heavy atom. So element 109 means the specific radioactive element that was later given the official name 'meitnerium'.