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Há 4 dias · 8–52. MedlinePlus. 001918. [ edit on Wikidata] Radiation therapy or radiotherapy ( RT, RTx, or XRT) is a treatment using ionizing radiation, generally provided as part of cancer therapy to either kill or control the growth of malignant cells. It is normally delivered by a linear particle accelerator.
Há 2 dias · Americium. double hexagonal close-packed (dhcp) Americium is a synthetic chemical element; it has symbol Am and atomic number 95. It is radioactive and a transuranic member of the actinide series in the periodic table, located under the lanthanide element europium and was thus named after the Americas by analogy.
- silvery white
- [243]
- 95
Há 1 dia · Rare-earth elements occur in nature in combination with phosphate ( monazite ), carbonate - fluoride ( bastnäsite ), and oxygen anions. In their oxides, most rare-earth elements only have a valence of 3 and form sesquioxides (cerium forms CeO2 ). Five different crystal structures are known, depending on the element and the temperature.
Há 5 dias · National Trust, British organization founded in 1895 and incorporated by the National Trust Act (1907) for the purpose of promoting the preservation of—and public access to—buildings of historic or architectural interest and land of natural beauty.
Há 4 dias · Visit the National Trust's Osterley Park and House, Isleworth, a Georgian estate in west London.
Há 2 dias · 3 min. The mother of a two-year-old boy killed by his father in Lismore on Sunday says the toddler should have been able to trust the man who took his life, and she will love and miss the little ...
Há 2 dias · This is one of the most recognisable skylines in the UK. Discover wild walks and scenery in the remote heart of Bannau Brycheiniog (Brecon Beacons). Discover Henrhyd Falls and watch the waterfall plunge into the heavily wooded gorge of the Nant Llech. The surrounding Graig Llech Woods are a haven for mosses and lichen.
