atomic number 53


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Noun1.atomic number 53 - a nonmetallic element belonging to the halogensatomic number 53 - a nonmetallic element belonging to the halogens; used especially in medicine and photography and in dyes; occurs naturally only in combination in small quantities (as in sea water or rocks)
chemical element, element - any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
iodine-131 - heavy radioactive isotope of iodine with a half-life of 8 days; used in a sodium salt to diagnose thyroid disease and to treat goiter
iodine-125 - light radioactive isotope of iodine with a half-life of 60 days; used as a tracer in thyroid studies and as a treatment for hyperthyroidism
halogen - any of five related nonmetallic elements (fluorine or chlorine or bromine or iodine or astatine) that are all monovalent and readily form negative ions
brine, saltwater, seawater - water containing salts; "the water in the ocean is all saltwater"
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25) What is the chemical element with atomic number 53? * Theo Paphitis - see Question 4 Trivia Quiz answers Answers: 1) Amy Childs 2) Big Brother 3) Matt Johnson 4) Dragon's Den 5) Maddy Riley 6) Nicola McLean 7) Smoking 8) Surgically enhanced nose 9) Rihanna 10) Khloe 11) Oldham 12) Trevor Immelman 13) Wasps, 2007 14) Eddie Irvine 15) Detroit 16) Up by 15p to pounds 6.08 17) Toyota 18) Yves Saint Laurent 19) Atifete Jahjaga 20) 146 21) Novella 22) Mr Magoo 23) Tetris 24) Hectare 25) Iodine