101 to 118 elements uses and where they are found?
Answers
The most expensive natural element is francium, but it decays so quickly it can't be collected to be sold. If you could buy it, you'd pay billions of dollars for 100 grams. The mostexpensive natural element that is stable enough to purchase is lutetium. ... Atoms of synthetic elements cost millions of dollars to produce.
Answer:
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Explanation:
✒Elements of atomic numbers of 101 to 103 have trivial names and corresponding two letter symbols approved by IUPAC. The status of these names and symbols is in no way affected by the recommendation of systematic names for elements of atomic numbers greater than 100.
✒Elements of atomic numbers greater than 103 are often referred to in the scientific literature but receive names only after they have been 'discovered'.
✒ Names are needed for indexing and other purposes and the Commission on Nomenclature of Inorganic Chemistry was asked to make recommendations concerning names and symbols of the heavy 'unknown' elements.
✒The Commission decided that these elements would be best named systematically and that names should accord with the following principles:
(i) The names should be short and obviously related to the atomic numbers of the elements.
(ii) The names should end in 'ium' whether the element was expected to be a metal or otherwise.
(iii) The symbols for the systematically named elements should consist of three letters.
(iv) The symbols should be derived directly from the atomic numbers and be visually related to the names as far as possible.
The reasons for principles (i), (ii), and (iv) are obvious but those for (iii) are not so immediately apparent. The Commission recommends the use of three-letter symbols because any systematically derived set of two-letter symbols will tend to duplicate some of the two-letter symbols of elements of atomic numbers less than 104. Any ad hoc method of removing such duplication will destroy the systematic derivation of the symbol.
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