Thallium 203 in my reference is stable. Thallium has many isotopes from Tl184 (11 sec half life) to Tl210 (1.30 min).
the overall atomic mass is 204.37, but for thallium 203 it is 203, and for thallium 205, it is 205.
(203 x 0.30) = 60.9 (205 x 0.70) = 143.5 60.9 + 143.5 = 204.4 The answer is 204.4 amu !
No, thallium isotopes do not contain iodine. Thallium isotopes are variants of the element thallium, while iodine is a separate element with its own isotopes.
Thallium(III) Selenide
Thallium-201 has 81 protons. This is because the number of protons in an atom is equal to its atomic number, and thallium has an atomic number of 81.
the overall atomic mass is 204.37, but for thallium 203 it is 203, and for thallium 205, it is 205.
(203 x 0.30) = 60.9 (205 x 0.70) = 143.5 60.9 + 143.5 = 204.4 The answer is 204.4 amu !
Thallium has two stable isotopes: Tl-203 (29.5%) and Tl-205 (70.5%). The percentages represent the relative abundance of each isotope in naturally occurring thallium.
101 and a half
The most stable isotope of thallium is thallium-205, which has 81 protons and 124 neutrons. Thallium in its elemental form is a soft, malleable, heavy metal that is typically found in nature combined with other elements.
Thallium is a heavy metal that is known to be odorless. There is no distinct smell associated with thallium.
Thallium has an oxidation number of +1. Therefore, the formula for thallium carbonate would be Tl2CO3.
No, thallium isotopes do not contain iodine. Thallium isotopes are variants of the element thallium, while iodine is a separate element with its own isotopes.
Thallium(III) Selenide
I think thallium weight about 189
Thallium has 6 electron shells.
Thallium-201 has 81 protons. This is because the number of protons in an atom is equal to its atomic number, and thallium has an atomic number of 81.