text: এ পর্যন্ত আবিষ্কৃত ১১৮টি মৌলিক পদার্থের তালিকা
  
  রাসায়নিক তালিকার লক্ষণীয়সমূহ
  
  তালিকা
  
  টীকা 
    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.
    The isotopic composition of this element varies in some geological specimens, and the variation may exceed the uncertainty stated in the table.
    The isotopic composition of the element can vary in commercial materials, which can cause the atomic weight to deviate significantly from the given value.
    The isotopic composition varies in terrestrial material such that a more precise atomic weight can not be given.
    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.
    Does not solidify at 1 atm; value listed (0.95 K) is the temperature at which helium solidifies at 2.5 atm.
    Sublimes at 1 atm
    Transuranic elements 99 and above do not occur naturally, but can be produced artificially.
    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]
  
  তথ্যসূত্র
  
    (for atomic weights of elements with atomic numbers from 1-102)
   
   
    (for atomic weights of elements with atomic numbers 103-118)
  
  বিষয়শ্রেণী:Lists of chemical elements
title: মৌলিক পদার্থের তালিকা