فهرست عناصر جدول تناوبی

طبقه‌بندی بر اساس نوع عنصر به تفکیک رنگ

ستون‌ها

• کشف عناصر شیمیایی
• فهرست عناصر بر اساس نماد اتمی
• منابع اطلاعاتی عناصر شیمیایی

• ^  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, three elements, 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, even near absolute zero, but does at 2.5 MPa at 0.95K.
• ^  Sublimes at 1 atm
• ^  عنصر فرااورانیم elements 95 and above only exist in physics laboratories.