During and after World War II Australia began supplying uranium for the US and UK ’s weapons programs‚ and this is how Australia got involved. British weapons tests in South Australia and Western Australia 1952-63 left a long line of health problems for Aborigines and armed service personnel‚ as well as significant environmental damage. Let ’s face it. We don ’t want safe nuclear power plants. We want NO nuclear power plants —A spokesman for the Government Accountability Project‚ an offshoot of
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hospital. The medicine nuclear pharmacists handle is called a radiopharmaceutical. Handling radiopharmaceuticals expose the pharmacists to radioactive materials which can arebe harmful if not monitored safely. In the workplace‚ nuclear pharmacists use what are called ring badges and body badges which monitor extremity and whole body exposure to the radioactive materials they use. The government has set special limits‚ for the pharmacist’s safety‚ as to how much radiation they can be exposed to. Most
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nuclear fuel elements? Nuclear fuel elements are made of uranium oxide‚ which is a naturally found form of uranium. It is enriched with uranium .235. Nuclear fuel elements can be used to produce large amounts of energy. Where does heat energy from radioactive decay come from? Heat decay is formed when radiation reacts with a material. The energy of either alpha‚ beta or gamma radiation is converted into heat energy. An example of this occurring in nature is in the core of the earth‚ when this is constantly
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valence shell on each of these. Ions Loss or gain of an electron makes an atom into an ion. + Gaining an electron makes a positive or negative ion? - Losing an electron makes a positive or negative ion? Isotopes Atoms that gain or lose a neutron become isotopes. Radioactive isotopes are used in medicine for imaging (such as PET scanners). Why is this important? • Each element has distinct properties: color‚ melting point‚ reactivity‚ etc. • The basic atomic structure of each element determines that element’s
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Environment: a sum of all the conditions surrounding us that influence life Environmental Science: the field that looks at interactions among humans and nature System: a set of interacting components that influence one another by exchanging energy or materials Ecosystem: the living and non-living components of a particular place on earth Biotic: the living part of the Earth (animals‚ plants) Abiotic: the non-living part of the Earth (soil‚ air‚ water) Environmentalist:any person who advocates
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Californium Cf Californium is a radioactive metal found in the actinide category of the periodic table. Its standard attomic weight is 251 and is elemenent numer 98. History Californium was first synthesized at the University of California‚ Berkeley by the physics researchers Stanley G. Thompson‚ Kenneth Street‚ Jr.‚ Albert Ghiorso‚ and Glenn T. Seaborg on or about February 9‚ 1950. It was the sixth transuranium element to be discovered; the team announced its discovery on March 17‚ 1950
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a) I definately agree with this statement and how science is ever changing. The scientific method begins by asking a question about something. After asking a question the next step is to form a hypothesis or educated guess. A repeatable expieriment is then created to test said hypothesis‚ and a large amount of data is collected. Data collection then leads Scientits to analyze the data and come up with a conclusion to see if the hypothesis was proven correct or incoreect. If the hypothesis is proven
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some of the many uses of calcium‚ the element has much to tell about it’s family and classification. Calcium happens to be apart of the Alkali Earth Metals. The element has 20 electrons‚ 20 protons‚ and the number of neutrons in the most abundant isotope is 20. The element belongs to period number 4‚ and is apart of group number 2‚ and out of there being non-metals‚ metals‚ and metalloids‚ calcium happens to be a metal[Emsley]. Characteristics of Calcium- Calcium has much to tell about
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The Element Niobium Atomic Number: 41 Atomic Weight: 92.90638 Melting Point: 2750 K (2477°C or 4491°F) Boiling Point: 5017 K (4744°C or 8571°F) Density: 8.57 grams per cubic centimeter Phase at Room Temperature: Solid Element Classification: Metal Period Number: 5 Group Number: 5 Group Name: none What’s in a name? Named for the Greek mythological figure Niobe. Say what? Niobium is pronounced as ni-OH-bee-um. History
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Testable Question: What will happen to different halide salts found in the body if various compounds are added to the halide? How will the halides react? Introduction: For this lab we tested 6 halide salts found in the body‚ and their reactivity when a compound is added. We tested the halides NaF‚ NaCl‚ KBr‚ KI‚ and two unknown halides. To find the reaction of the halide‚ we are adding drops of Ca(NO3)2‚ AgNO3‚ AgNO3 + Na2S2O3‚ and NaOCI + Starch to the halides. Each halide will be separated from
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