Which element has the longest life?
Table of Contents
Which element has the longest life?
Bismuth-209
| General | |
|---|---|
| Half-life | 2.01×1019 years |
| Parent isotopes | 209Pb (β−) 209Po (β+) 213At (α) |
| Decay products | 205Tl |
| Isotope mass | 208.9803987 u |
Which of the following has the longest life span?
Banyan tree
African bush elephants live for about 60 to 70 years. Banyan tree has the longest lifespan of nearly 200 to 300 years. It has a larger lifespan than any other living organism. When compared to the all the options given, banyan tree has the longest life span.
Which element has the shortest lifespan?
You may wonder which naturally-occurring element has the shortest half-life. That would be francium, element 87, whose longest-lived isotope, francium-223, has a half-life of 22 minutes, decaying either into radium by beta decay or astatine by alpha emission.
Which elements are the most unstable?
This is the longest half-life directly measured for any unstable isotope; only the half-life of tellurium-128 is longer….Tables.
| Element | xenon |
|---|---|
| unstable in italics odd neutron number in pink | 132 Xe |
| 129 Xe | |
| 131 Xe | |
| 134 Xe |
What is Rose lifespan?
Rose lifespan is from 5 to 7 years.
How long can an elephant live?
Asian elephant: 48 years
African bush elephant: 60 – 70 yearsAfrican forest elephant: 60 – 70 years
Elephant/Lifespan
What is the 81st element?
Thallium is a chemical element with symbol Tl and atomic number 81. Classified as a post-transition metal, Thallium is a solid at room temperature.
Which element is most radioactive?
The radioactivity of radium then must be enormous. This substance is the most radioactive natural element, a million times more so than uranium.
How to find the half-life of all the elements of periodic table?
This Half-Life chart table gives the Half-Life of all the elements of periodic table . Click on ‘Element Atomic Number’, ‘Element Symbol’, ‘Element Name’ and ‘Element Half-Life’ headers to sort. Loading, please wait… In the below periodic table you can see the trend of Half-Life.
What is the heaviest stable isotope on the periodic table?
Of the first 82 elements in the periodic table, 80 have isotopes considered to be stable. The 83rd element, bismuth, was traditionally regarded as having the heaviest stable isotope, bismuth-209, but in 2003 researchers in Orsay, France, measured the half-life of 209. Bi.
How many elements have isotopes with a half life of 100 years?
Only 13 of the 38 known-but-unstable elements have isotopes with a half-life of at least 100 years. Every known isotope of the remaining 25 elements is highly radioactive; these are used in academic research and sometimes in industry and medicine.
Which is the last stable element in the universe?
Bismuth (Bi). Although bismuth has long been regarded as “the last stable element”, it was recently observed to emit alpha particles, with an estimated half-life billions times longer than the age of the universe.