Texnetsiy
43
Tc
Guruh
7
Davr
5
Blok
d
Protonlar
Elektronlar
Neytronlar
43
43
55
Umumiy xususiyatlar
Atom raqami
43
Atom massasi
[98]
Mass raqami
98
Turkum
Oʻtish metallar
Ranggi
Kumush
Radioaktivlik
Ha
From the Greek word technetos, artificial
Kristall tuzilma
Oddiy olti burchakli
Tarix
Element 43 was predicted on the basis of the periodic table, and was erroneously reported as having been discovered in 1925, at which time it was named masurium.
The element was actually discovered by Carlo Perrier and Emilio Segrè in 1937.
It was also found in a sample of molybdenum sent by Ernest Lawrence that was bombarded by deuterons in the Berkeley cyclotron.
The element was actually discovered by Carlo Perrier and Emilio Segrè in 1937.
It was also found in a sample of molybdenum sent by Ernest Lawrence that was bombarded by deuterons in the Berkeley cyclotron.
Qobiqdagi elektronlar soni
2, 8, 18, 13, 2
Elektron konfiguratsiyasi
[Kr] 4d5 5s2
Technetium was the first element to be produced artificially
Jismoniy xususiyatlar
Faza
Qattiq modda
Zichlik
11,5 g/cm3
Erish harorati
2430,15 K | 2157 °C | 3914,6 °F
Qaynash harorati
4538,15 K | 4265 °C | 7709 °F
Eritish issiqligi
23 kJ/mol
Bugʻlanish issiqligi
550 kJ/mol
Solishtirma issiqlik sigʻimi
- J/g·K
Yer po‘stidagi miqdori
Nomaʼlum
Olamdagi miqdori
Nomaʼlum
CAS raqami
7440-26-8
PubChem CID raqami
Nomaʼlum
Atom xususiyatlari
Atom radiusi
136 pm
Kovalentlik radiusi
147 pm
Elektrmanfiylik
1,9 (Poling boʻyicha)
Ionlashish potensiali
7,28 eV
Molyar hajm
8,5 cm3/mol
Issiqlik oʻtkazuvchanlik
0,506 W/cm·K
Oksidlanish darajasi
-3, -1, 1, 2, 3, 4, 5, 6, 7
Qo‘llanilish sohalari
Technetium is used in nuclear medicine to carry out a number of medical tests, mainly relating to imaging and functional studies of internal bodily organs like bone scan.
It is also used industrially for equipment calibration following its approval as a standard beta emitter.
Mild carbon steels may be effectively protected by minute quantities of technetium, but this corrosion protection is limited to closed systems because of technetium's radioactivity.
It is also used industrially for equipment calibration following its approval as a standard beta emitter.
Mild carbon steels may be effectively protected by minute quantities of technetium, but this corrosion protection is limited to closed systems because of technetium's radioactivity.
Technetium is harmful due to its radioactivity
Izotoplar
Barqaror izotoplar
-Beqaror izotoplar
85Tc, 86Tc, 87Tc, 88Tc, 89Tc, 90Tc, 91Tc, 92Tc, 93Tc, 94Tc, 95Tc, 96Tc, 97Tc, 98Tc, 99Tc, 100Tc, 101Tc, 102Tc, 103Tc, 104Tc, 105Tc, 106Tc, 107Tc, 108Tc, 109Tc, 110Tc, 111Tc, 112Tc, 113Tc, 114Tc, 115Tc, 116Tc, 117Tc, 118Tc