atomic number 109
- noun
- Specialized
:
número atómico 109
- The element with atomic number 109 is called meitnerium.
Examples
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Scientists succeeded in creating atomic number 109 in a laboratory for the first time in 1982.
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Because of its instability, atomic number 109 has no practical applications outside scientific research.
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The team identified the decay products of atomic number 109 using advanced detection equipment.
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Did you know that atomic number 109 belongs to a synthetic element?
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Due to its radioactive nature, atomic number 109 is mainly studied by chemists in controlled environments.
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Research on atomic number 109 has contributed to our understanding of heavy elements and their properties.
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In experiments, scientists have observed the behavior of atomic number 109 during nuclear decay processes.
Synonyms
A very heavy radioactive metal made by scientists with atomic number 109
A man-made radioactive element that scientists make in a laboratory and do not find in nature
The chemical symbol for meitnerium, a very heavy radioactive element with number 109
Surface Forms
Morphology
The meaning is directly compositional: 'atomic' (relating to atoms) + 'number' (a numerical identifier) + the numeral '109' clearly denotes the numerical identifier assigned to an element. Even if a learner doesn't know the technical detail that it counts protons, the phrase straightforwardly indicates that element number 109 (meitnerium) is being referred to, a construction common across languages.
Etymology
Atomic number 109 literally says an atom's number is 109, meaning it has 109 protons in its center and so it names the man-made element meitnerium. Because this element was made in a laboratory and breaks down very quickly, atomic number 109 today means the short-lived element 'meitnerium'.
