What are the 3 isotopes of thallium?

Thallium (81Tl) has 41 isotopes with atomic masses that range from 176 to 216. Tl and 205Tl are the only stable isotopes and 204Tl is the most stable radioisotope with a half-life of 3.78 years. Tl, with a half-life of 4.77 minutes, has the longest half-life of naturally occurring radioisotopes.

How many isotopes of astatine are there?

39
Astatine (85At) has 39 known isotopes, all of which are radioactive; the range of their mass numbers is from 191 to 229.

How many isotopes of polonium are there?

Twenty five isotopes of polonium are known, with atomic masses ranging from 194 to 218. Polonium-210 is the most readily available.

What is an isotope L?

Isotopes are two or more types of atoms that have the same atomic number (number of protons in their nuclei) and position in the periodic table (and hence belong to the same chemical element), and that differ in nucleon numbers (mass numbers) due to different numbers of neutrons in their nuclei.

What are thallium isotopes?

Definition. The element thallium (Tl) has two isotopes; 203Tl and 205Tl. Thallium isotope measurements have been conducted since the 1960s due to the hypothesized presence of the radioactive isotope 205Pb (which decays to 205Tl with a half-life of ~15 million years) when the solar system formed.

Is thallium a TI or Tl?

Thallium is a chemical element with the symbol Tl and atomic number 81. It is a gray post-transition metal that is not found free in nature.

What is the most common isotope in astatine?

astatine-210
Astatine’s most stable isotope, astatine-210, has a half-life of 8.1 hours. It decays into bismuth-206 through alpha decay or into polonium-210 through electron capture.

What compound is astatine?

Several compounds of astatine have been synthesized in microscopic amounts: in addition to hydrogen (hydrogen astatide, HAt, which forms hydroastatic acid when dissolved in water), astatine has been shown to bind to the other halides, silver, sodium, palladium, oxygen, sulfur, selenium, nitrogen, lead, boron, and …

What is the most common isotope of polonium?

polonium-210
The half-lives of its isotopes range from a fraction of a second up to 103 years; the most common natural isotope of polonium, polonium-210, has a half-life of 138.4 days.

Is polonium an isotope?

A rare and highly radioactive metal with no stable isotopes, polonium is chemically similar to selenium and tellurium, though its metallic character resembles that of its horizontal neighbors in the periodic table: thallium, lead, and bismuth.