Science Assessment Task 3 – Script Technetium-99m An isotope of an element has the same number of protons but has a different number of neutrons. A radioisotope is an isotope that’s nuclei is unstable and therefore emits particles or rays of radiation. An example of a radioisotope is Technetium-99m. Technetium-99m emits gamma radiation. Gamma radiation is the highest frequency electromagnetic radiation that nuclei can emit, but don’t be scared just yet, because only such a small amount of radiation
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is 10-10. A simple description of the nucleus tells us that is is composed of protons and neutrons. These two particle types are collectively called nucleons (particles which inhabit the nucleus. In a nucleus, there is two classification, those are the Atomic number which define the number of protons in a nucleus, and the other is the Mass number which is defined as the number of nucleons in a nucleus (number of protons plus the number of neutrons).
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emerged and ways to improve of Proton cars in Malaysia. The objective of this paper is not only to find out the problems faced by Proton, but also to discuss the ways in order to improve the Proton reliability and retrieve the supporter’s heart to keep using Proton car in the automotive sector. However, in this competitive time where there are a lot of so-called competitors such as Hyundai, Toyota, and Perodua no matter foreign or local brand cars had caused the Proton car buyers to reduce significantly
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Running head: UNIT 3: WAVE LENGTHS AND THE ATOM Wave Lengths and the Atom Nature of waves James Trefil and Robert M. Hazen (2011) stated, “The nature of wave’s travel through the speed of light, and life on earth is transmitted through space by such a wave” (p. 118. para. 3). Waves occur in one’s daily life; all of such waves must move through matter (p. 118, para. 1). Radio waves allow transmission of music, microwaves assist in heating and cooking food, and X-rays are used by dentists
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1 H . 1 D . Hi-Res Images of Chemical Elements A Virtual Museum © Jumk.de Webprojects | Imprint & Privacy Chemical Calculators | Atomic Collider Simulation 2 He . 3 Li ... 4 Be ... 5 B ... 6 C ... 7 N . 8 O . 9 F . 10 Ne . 11 Na ... 12 Mg ... 13 Al ... 14 Si ... 15 P ... 16 S ... 17 Cl . 18 Ar . 19 K ... 20 Ca ... 21 Sc ... 22 Ti ... 23 V ... 24 Cr ... 25 Mn ... 26 Fe ... 27 Co ... 28 Ni ... 29 Cu ... 30 Zn ... 31 Ga ... 32 Ge ... 33 As ... 34 Se ..
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Aprender a pensar Ernest Rutherford Instituto Internacional para el Desarrollo de la Innovación Académica Cambridge, 26 marzo – 3 abril de 2007 Sir Ernest Rutherford, presidente de la Sociedad Real Británica y Premio Nobel de Química en 1908, contaba la siguiente anécdota: Hace algún tiempo, recibí la llamada de un colega. Estaba a punto de poner un cero a un estudiante por la respuesta que había dado en un problema de física, pese a que éste afirmaba rotundamente que su respuesta era absolutamente
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Chemistry 1. 5 points of the particle theory: * 1. All matter is made up of tiny particle with empty spaces between them * 2. Different substances are made up of different particles * 3. Particle are always in constant random motion * 4. Particles of a substance move faster as the temperature increases * 5. Particles attract each other 2. Changing state from solid to liquid to gas: * form a solid when the forces are strong enough to form a rigid shape * they gain
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A unit of matter, the smallest unit of an element, consisting of a dense, central, positively charged nucleus surrounded by a system of electrons, equal in number to the number of nuclear protons, the entire structure having an approximate diameter of 10-8 centimeter and characteristically remaining undivided in chemical reactions except for limited removal, transfer, or exchange of certain electrons. The history of the study of the atomic nature of matter illustrates the thinking process that goes
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The Modern Development of Atomic Theory According to Democritus, “Nothing exists except atoms and empty space; everything else is opinion.” This conveys the controversy in scientific investigations made in defining a singular molecule. Since 460 BC, atomism has been an alternating concept of chemistry. Several significant scientists have contributed to this field profoundly. The modern development of the atomic theory is based on researches and discoveries of Democritus, John Dalton, J.J. Thomson
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0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.5000i Iz = 0.5000 0 0 -0.5000 0 0 0 0 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 - 0.5000i 0.0000 + 0.0000i 0 0 0 0 Spin operators of proton: Sx = 0 0 0.5000 0 0 -0.5000 0.5000 0 0 0 0 0 0 0.5000 0.5000 0 0 0.5000 0 0 Sy = 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.5000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0.0000 + 0.0000i 0
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