Talliy
81
Tl
Guruh
13
Davr
6
Block
p
Protonlar
Elektronlar
Neytronlar
81
81
123
General Properties
Atom raqami
81
Atom massasi
204,3833
Mass Number
204
Turkum
Yengil metallar
Ranggi
Silver
Radioaktivlik
Yoʻq
From Greek thallos, meanin a green shoot or twig
Crystal Structure
Simple Hexagonal
Tarix
Thallium was discovered spectroscopically by Sir William Crookes in 1861, in London.
In 1862, Claude-Auguste Lamy used a spectrometer to determine the composition of a selenium-containing substance which was deposited during the production of sulfuric acid from pyrite.
He noticed the new green line in the spectra and concluded that a new element was present.
In 1862, Claude-Auguste Lamy used a spectrometer to determine the composition of a selenium-containing substance which was deposited during the production of sulfuric acid from pyrite.
He noticed the new green line in the spectra and concluded that a new element was present.
Electrons per shell
2, 8, 18, 32, 18, 3
Elektron konfiguratsiyasi
[Xe] 4f14 5d10 6s2 6p1
Agatha Christie made use of thallium's toxicity in her novel The Pale Horse
Physical Properties
Phase
Qattiq modda
Zichlik
11,85 g/cm3
Erish harorati
577,15 K | 304 °C | 579,2 °F
Qaynash harorati
1746,15 K | 1473 °C | 2683,4 °F
Heat of Fusion
4,2 kJ/mol
Heat of Vaporization
165 kJ/mol
Solishtirma issiqlik sigʻimi
0,129 J/g·K
Abundance in Earth's crust
0,000053%
Abundance in Universe
5×10-8%
CAS Number
7440-28-0
PubChem CID Number
5359464
Atomic Properties
Atom radiusi
170 pm
Kovalentlik radiusi
145 pm
Elektrmanfiylik
1,62 (Poling boʻyicha)
Ionization Potential
6,1082 eV
Molyar hajm
17,2 cm3/mol
Issiqlik oʻtkazuvchanlik
0,461 W/cm·K
Oksidlanish darajasi
1, 3
Applications
Thallium selenide has been used in a bolometer for infrared detection.
Thallium is also used in gamma radiation detection equipment.
Thallium oxide has been used to produce glasses with a high index of refraction, and is used in the manufacture of photo cells.
Some of the electrodes in dissolved oxygen analyzers contain thallium.
Thallium is also used in gamma radiation detection equipment.
Thallium oxide has been used to produce glasses with a high index of refraction, and is used in the manufacture of photo cells.
Some of the electrodes in dissolved oxygen analyzers contain thallium.
Thallium and its compounds are highly toxic
Izotoplar
Barqaror izotoplar
203Tl, 205TlBeqaror izotoplar
176Tl, 177Tl, 178Tl, 179Tl, 180Tl, 181Tl, 182Tl, 183Tl, 184Tl, 185Tl, 186Tl, 187Tl, 188Tl, 189Tl, 190Tl, 191Tl, 192Tl, 193Tl, 194Tl, 195Tl, 196Tl, 197Tl, 198Tl, 199Tl, 200Tl, 201Tl, 202Tl, 204Tl, 206Tl, 207Tl, 208Tl, 209Tl, 210Tl, 211Tl, 212Tl