Reactions & Nuclear Chemistry Assessment Task Assignment Question 1 Produce a summary reactions sheet for all the chemical reactions encountered in production of materials. Your summary should contain the following components a) Name of reaction b) General word equation c) Balance formulae equation d) An example of the reaction Question 2 What types of instruments and processes are used to detect radiation? The properties of nuclear radiation are used to detect their
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bui (dnb562) – HW 24-2 – Antoniewicz – (57050) This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points A proton is briefly accelerated in the −y direction‚ as shown in the figure below. A × B × C × k= a + D × 1 003 10.0 points An electric field acts on an electron‚ resulting in an acceleration of 1.6 × 1017 m/s2 for a short time. What is the magnitude of the radiative electric field observed at
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Through his famous 1911 gold-foil experiment‚ Earnest Rutherford‚ a former student of Thomson‚ evolved the atomic model once again. Rutherford and his colleagues fired alpha particles‚ helium atoms that had lost their two electrons‚ at a thin piece of gold foil (only 0.00004 cm in width). They used a screen coated in zinc sulfide to "catch" the alpha particles after they had penetrated the gold foil. The screen would also emit a flash of light where it was hit by an alpha particle‚ which enabled
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All atoms are electrically neutral i.e. they have the same amounts of negative and positive charge inside them. The electrons carry negative charge and the protons carry positive charge. The basic unit of charge (called the elementary charge)‚ is the amount of charge carried by one electron. The charge on a single electron is qe = 1‚ 6x10−19 C. All other charges in the universe consist of an integer multiple of this charge (i.e. Q = nqe). This is known as charge quantisation. All the matter
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Max Karl Ernst Ludwig Planck was born in Kiel‚ Germany on April 23‚ 1858 (Foundation‚ 2014). He was awarded the Nobel Peace Prize in 1918 and developed what would come to be known as “Planck’s Constant” in quantum theory. During his collegiate years he studied under Gustav Kirchoff‚ who developed Kirchoff’s Law for current and voltages. He suffered a personal tragedy when one of his sons was killed for his participation in an assassination attempt against Adolf Hitler in 1944. Planck’s earliest
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Part one: The Lab You will be helping Galileo perform the experiment to determine if objects with different mass fall at the same‚ or different‚ rates in the air and in a vacuum. Before you conduct your experiment‚ you need to form a hypothesis. A hypothesis is a prediction of what you think will happen in the experiment. The hypothesis is a statement that describes “if” a certain set of circumstances are present “then” there will be a specific result that will occur. Record your hypothesis here:
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The modern atomic theory was developed by many scientists‚ such as Neil Bohr‚ Democritus‚ James Chadwick and John Dalton. Each of these intelligent scientists have found different discoveries in their research with the atom. Why has scientific understanding of the atom changed over time? This would be because each scientist has had a different approach and has discovered new understandings from their research. Without these men researching and experimenting‚ we would not know all of the different
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School of Physics Faculty of Science Moodle Home Announcements User Guides i PHYS1160-Introduction to Astronomy T1 2014 You are logged in as Henry Cai (Logout) My courses UNSWA - University of New South Wales SCI - Faculty of Science PHYS - School of Physics Module 3 (Weeks 5-6) — Life on Earth and in the Solar System PHYS1160-5144_01311 Module 3 Quiz Quiz navigation 1 2 3 4 5 6 7 8 9 10 11 Started on State Completed
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Week Five Textbook Exercises Geoffrey Anderson PHY/101 December 9‚ 2014 Mr. Craig Spencer Week Five Textbook Exercises Chapter 22: Electrostatics 8) When combing your hair‚ you scuff electrons from your hair onto the comb. Is your hair then positively or negatively charged? How about the comb? -The hair becomes positively charged and the comb becomes negatively charged; since‚ the electrons went from your hair to the comb and the more electrons there is makes an object more negative. 18)
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My element is Mercury‚the atomic number is 80 and the atomic mass is 200.59.The symbol is Hg.Mercury comes from the greek name hydrargyrum which means liquid silver.The element is also known as quicksilver for its mobility. Named after the fastest-moving planet in the solar system‚ mercury has been known to humanity for ages.despite its toxic qualities‚ mercury can still be useful to us. The element conducts electricity and is used in electrical switches of thermostats and certain types of doze alarm-type
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