actinium


Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia, Wikipedia.

actinium

 (Ac) [ak-tin´e-um]
a chemical element, atomic number 89, atomic weight 227. (See Appendix 6.)

ac·tin·i·um (Ac),

(ak-tin'ē-ŭm),
An element, atomic no. 89, atomic wt. 227.05; it possesses no stable isotopes and exists in nature only as a disintegration product of uranium and thorium.
[G. aktis, a ray]

actinium

/ac·tin·i·um/ (Ac) (ak-tin´e-um) a chemical element, at. no. 89.

actinium (Ac)

a rare, radioactive metallic element. Its atomic number is 89; its atomic mass is 227. It occurs in some ores of uranium.

ac·tin·i·um

(Ac) (ak-tin'ē-ŭm)
An element, atomic no. 89, atomic wt. 227.05; it possesses no stable isotopes and exists in nature only as a disintegration product of uranium and thorium.
[G. aktis, a ray]

actinium

a chemical element, atomic number 89, atomic weight 227, symbol Ac. See Table 6.
References in periodicals archive ?
Actinium is engaged in the development and commercialization of alpha particle immunotherapeutics based on its unique patent position for the utilization of actinium-225 and bismuth-213.
A private biopharmaceutical company, Actinium develops innovative targeted radio-immunotherapeutics to treat various cancers.
This report provides comprehensive information on the current therapeutic developmental pipeline of Actinium Pharmaceuticals, Inc.
Actinium Pharma declared that it has presented an Investigational New Drug (IND) application with the U.
Biopharmaceutical company Actinium Pharmaceuticals (NYSE MKT:ATNM) disclosed on Thursday that the underwriters of its public offering have exercised their over-allotment option to purchase an additional 157,123 shares.
Thus ACTINIUM gives rise to ANATOMIC, but not to MONOTONIC.
1) Actinides consist of actinium and heavier elements in the
232]Th, plant (13) processing thoron UK AEA (14,15) Nuclear 1,418 Tritium, research and 3,154 Plutonium, some power 5,846 Others, generation unspecified UK AWE (16) Atomic weapons 3,742 Plutonium research and 3,044 Uranium development 1,562 Tritium 638 Polonium 281 Actinium Multiple sites: Atomic weapons 17,565 Plutonium; UK AEA, UK AWE, and research and uranium; Sellafield, UK (17) development tritium; polonium; actinium, others unspecified Sellafield, UK (18) Reprocessing 14,319 Plutonium and storing of used nuclear fuel Mayak, Russia Atomic weapons 500 Plutonium (19-22) research and developement Exposure No.
Biopharmaceutical company Actinium Pharmaceuticals (NYSE MKT:ATNM) reported on Monday the completion of its public offering of 1,670,000 common shares at USD7.
hydrogen + xenon + barium + tantalum + boron + praseodymium + iridium + hassium + plutonium + thallium + germanium + scandium + thulium + einsteinium + erbium + cadmium + beryllium + tin + actinium + seaborgium + carbon + fluorine + indium + osmium + nitrogen + potassium + lead + protactinium + silicon + lutetium + rhenium + mercury + argon + neodymium + platinum + thorium lanthanum + oxygen + terbium + radon + samarium + dysprosium + iodine + bohrium + aluminium + chromium + palladium + tungsten + lithium + caesium + dubnium + meitnerium + niobium + ytterbium + gallium + arsenic + iron + sodium + nobelium + francium + astatine + strontium + copper + gadolinium + yttrium + selenium + curium + chlorine + promethium + gold + uranium + antimony
16 July 2014 - US cancer immunotherapeutics developer Actinium Pharmaceuticals Inc (NYSEMKT:ATNM) said Wednesday it had started developing an additional antibody construct labelled with actinium-225, which holds potential as a therapy of various blood cancers.
Biopharmaceutical company Actinium Pharmaceuticals (NYSE MKT:ATNM) reported on Wednesday that it has priced a public offering of 1,670,000 common shares at USD7.