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মৌলিক পদার্থের তালিকা

উইকিমিডিয়ার তালিকা নিবন্ধ উইকিপিডিয়া থেকে, বিনামূল্যে একটি বিশ্বকোষ

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এ পর্যন্ত আবিষ্কৃত ১১৮টি মৌলিক পদার্থের তালিকাসমূহ নিম্নরূপ:

রাসায়নিক তালিকার লক্ষণীয়সমূহ

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মৌলের তালিকা

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আরও তথ্য পারমাণবিক সংখ্যা, প্রতীক ...

১১৯। Ps Plastic ২৯৫

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টীকা

  • ^1 The element does not have any stable nuclides, and a value in brackets, e.g. [209], indicates the mass number of the longest-lived isotope of the element. However, four elements, bismuth, thorium, protactinium, and uranium, have a characteristic terrestrial isotopic composition, and thus their standard atomic weights are given.
  • ^2 The isotopic composition of this element varies in some geological specimens, and the variation may exceed the uncertainty stated in the table.
  • ^3 The isotopic composition of the element can vary in commercial materials, which can cause the atomic weight to deviate significantly from the given value.
  • ^4 The isotopic composition varies in terrestrial material such that a more precise atomic weight can not be given.
  • ^5 The atomic weight of commercial lithium can vary between 6.939 and 6.996—analysis of the specific material is necessary to find a more accurate value.
  • ^6 Does not solidify at 1 atm; value listed (0.95 K) is the temperature at which helium solidifies at 2.5 atm.
  • ^7 Sublimes at 1 atm
  • ^8 Transuranic elements 99 and above do not occur naturally, but can be produced artificially.
  • ^9 The value listed is the conventional value suitable for trade and commerce; the actual value may differ depending on the isotopic composition of the sample. Analysis of the specific material is necessary to find a more accurate value. The possible ranges of the actual values are:
    • Hydrogen: [1.00784; 1.00811]
    • Lithium: [6.938; 6.997]
    • Boron: [10.806; 10.821]
    • Carbon: [12.0096; 12.0116]
    • Nitrogen: [14.00643; 14.00728]
    • Oxygen: [15.99903; 15.99977]
    • Silicon: [26.084; 26.086]
    • Sulfur: [32.059; 32.076]
    • Chlorine: [35.446; 35.457]
    • Thallium: [204.382; 204.385]

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