Periodic Table of the Elements Group 1 Group 18 1 1 1.00794 1 2 H 1s1 Hydrogen Group 2 Atomic Number Key 30 65.39 2 Atomic Mass 4.002602 0 He Group 13 Group 14 Group 15 Group 16 Group 17 1s2 Helium 3 2 (6.941) 1 4 9.012182 2 Li [He]2s1 Lithium Be [He]2s2 Beryllium Zn [Ar]3d104s2 Zinc Oxidation States Symbol Electron Configuration 5 10.811 3 6 12.0107 ±4‚2 7 14.0067 ±3‚5‚4‚2 8 15.9994 -2 9 18.9984032 -1 10
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Ewings sarcoma Ewing’s sarcoma (ES) named after Dr. James wing in 1921; he was the first man identified the disease that uncontrollably destroys the bone or body tissue of the human body (Randall‚ n.d.). ES is a disseminated small round neoplasm‚ which commonly occurs in the bones and unusually in body tissue (Iwamoto‚ 2007). ES is the second leading tumor in the bone of children between the age of ten and twenty years old‚ and the occurrence is slightly more in male than female (Iwamoto‚ 2007)
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The Benefits of Nuclear Technology Concerns about the disastrous event in the past make people to look into nuclear technology in a very negative perspective. For example‚ the 1979 partial meltdown of a reactor at Three Mile Island and the Chernobyl disaster in 1986. On that note‚ the most recent international event regarding nuclear technology possession‚ where Iran falls under probation for using nuclear technology for non-peaceful purposes (Iran entitled to use peaceful nuclear technology: EU
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6th‚ and 7th‚ the Expedia College Baseball Invitational will take place in San Juan‚ Puerto Rico. This is a three-day series and will be held at the Hiram Bithorn Stadium. The stadium is 325 feet (99 m) along the left side of the field and 325 feet (99m) down the right field line and 404 feet (123m) at center field. At this structure and size‚ this stadium will provide a great location for the teams that are competing allowing a great venue of entertainment for family‚ friends‚ and members within the
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9.2.5 Chemistry past paper questions 2001 Question 16 (3 marks) Radioisotopes are used in industry‚ medicine and chemical analysis. For ONE of these fields‚ relate the use of a named radioisotope to its properties. Medicine – Iodine Ingested iodine concentrates in the thyroid gland and so iodine 131 can treat thyroid disorders (e.g. tumours) Iodine 131 has a half life of just over 8 days‚ emits beta particles and gamma rays as it decays. This half life is long enough for it to be transported form
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Periodic Table of Elements 1 1 1 2 Atomic # 3 4 C Solid 5 6 7 8 Metals 9 10 11 Nonmetals 12 13 14 15 16 17 2 18 2 K 1 H 3 Symbol Name Atomic Mass 2 1 He Helium 4.002602 Hydrogen 1.00794 Alkali metals Alkaline earth metals Transition metals Poor metals Other nonmetals Noble gases 4 2 2 2 Li 11 Be Beryllium 9.012182 2 8 1 Hg Liquid H Gas Lanthanoids Actinoids 5 2 3 6 2 4
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Common Gastrointestinal Diagnostic Procedures Colonoscopy Colonoscopy is a diagnostic test used to detect abnormalities‚ such as polyps‚ ulcers or cancerous changes‚ in the large intestine. A few days prior to the test‚ the patient is asked to eat a clear liquid diet‚ including things such as ginger ale‚ plain tea and coffee‚ gelatin‚ ginger ale and water. The night before the procedure‚ the patient is given a bowel prep to empty the contents of the large intestine. On the day of the test‚ the
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Coronary Artery Disease 10/31/2005 This paper will serve as a case study for the condition known as coronary artery disease (CAD). CAD occurs when the coronary arteries become hardened and narrowed; this is due to the buildup of plaque on the inner lining of the arteries. Blood flow to the heart is reduced as plaque narrows the coronary arteries‚ thereby decreasing the oxygen supply to the heart muscle. This loss of oxygen in the blood can lead to ischemia and later‚ myocardial infarction
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C A L I F O R N I A S TA N DA R D S T E S T Chemistry Released Test Questions Question Number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Correct Answer A A C A B D A A A B A A C D A A C D B D D C A C A C D A D A C A B D A Standard CHIE1.A CHIE1.A CHIE1.C CHIE1.D CHIE1.E CHIE1.F CHIE1.F CHIE1.G CHIE1.K CH1.A CH1.A CH1.A CH1.B CH1.B CH1.C CH1.C CH1
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M12/4/PHYSI/HP3/ENG/TZ2/XX 22126515 Physics Higher level Paper 3 Candidate session number 0 0 Examination code Friday 11 May 2012 (morning) 2 1 hour 15 minutes 2 1 2 – 6 5 1 5 INSTRUCTIONS TO CANDIDATES • • • • • • • Write your session number in the boxes above. Do not open this examination paper until instructed to do so. Answer all of the questions from two of the Options. Write your answers in the boxes provided. A calculator is required for this paper. A clean copy of the
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