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Technetium also has numerous nuclear isomers, which are isotopes with one or more excited nucleons. Technetium-97m (97m Tc; "m" stands for metastability) is the most stable, with a half-life of 91 days and excitation energy 0.0965 MeV. [58] This is followed by technetium-95m (61 days, 0.03 MeV), and technetium-99m (6.01 hours, 0.142 MeV). [58]
The Chinese often organize dragon dances during Tết Trung Thu, while the Vietnamese do lion dances. The lion symbolizes luck and prosperity and is a good omen for all families. In the past, Vietnamese people also held trống quân singing and hung lanterns in kéo quân during the festival. The drums are sung to the rhythm of three "thình ...
Pages in category "Technetium" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. ...
A technetium star, or more properly a Tc-rich star, is a star whose stellar spectrum contains absorption lines of the radioactive metal technetium.The most stable isotope of technetium is 97 Tc with a half-life of 4.21 million years: too short a time to last for the age of the Earth (about 4.5 billion years).
Chữ Nôm (𡨸喃, IPA: [t͡ɕɨ˦ˀ˥ nom˧˧]) [5] is a logographic writing system formerly used to write the Vietnamese language.It uses Chinese characters to represent Sino-Vietnamese vocabulary and some native Vietnamese words, with other words represented by new characters created using a variety of methods, including phono-semantic compounds. [6]
Technetium-99m (99m Tc) is a metastable nuclear isomer of technetium-99 (itself an isotope of technetium), symbolized as 99m Tc, that is used in tens of millions of medical diagnostic procedures annually, making it the most commonly used medical radioisotope in the world.
Nguyễn Đình Chiểu was born in the southern province of Gia Định, the location of modern Saigon.He was of gentry parentage; his father was a native of Thừa Thiên–Huế, near Huế; but, during his service to the imperial government of Emperor Gia Long, he was posted south to serve under Lê Văn Duyệt, the governor of the south.
Vinh Hai commune, Vinh Chau district, Soc Trang province Soc Trang 30 Soc Trang Energy JSC [214] HBRE Phu Yen An Tho, An Hiep and An Linh communes, Tuy An district, Phu Yen province Phu Yen 200 Super Energy Corporation Preparation [215] HBRE Gia Lai Ia Bang and Ia Phin communes, Chu Prong district, Gia Lai province Gia Lai 50