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    all: stars. In the core of a star like the Sun‚ strong gravitational pressure forces together hydrogen plasma – an equal mixture of protons and electrons. Extreme conditions of 15 million-degree-temperatures and high pressures mean that protons have enough energy to overcome their mutual repulsion for each other‚ allowing the attractive forces to kick in. When protons fuse

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    INTRODUCTION Protons and neutrons make up a nucleus‚ which is the foundation of nuclear science. Fission and fusion involves the dispersal and combination of elemental nucleus and isotopes‚ and part of nuclear science is to understand the process behind this phenomenon. Adding up the individual masses of each of these subatomic particles of any given element will always give you a greater mass than the mass of the nucleus as a whole. The missing idea in this observation is the concept called nuclear

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    Tma04

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    (68) c) i) Magnesium Atomic Number = 12 Magnesium 24 = 12 protons + 12 neutrons (78.6%) Magnesium 25 = 12 protons + 13 neutrons (10.1%) Magnesium 26 = 12 protons + 14 neutrons (11.3%) 0.786 x 24 = 18.864 (magnesium 24) + 0.101 x 25 = 2.525 (magnesium 25) + 0.113 x 26 = 2.938 (magnesium 26) = 24.327 Average relative atomic mass of magnesium (to 1 decimal place) = 24.3 ii) 24‚ 25‚ 26 indicate how many protons and neutrons (combined) there are in each stable isotope of magnesium

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    electricity possible. In the article the author says that we use electricity in our daily lives. In the article it explains that all matter is made up of atoms which are made up of smaller particles called the proton‚ the neutron‚ and the electron. It states that electrons have a negative charge and protons have a positive charge. There

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    Mcb300 Exam 2

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    synthase is found in all living organisms b. ATP synthase is a redox-driven proton pump c. ATP synthase can use proton motive force (PMF) to drive ATP synthesis d. ATP synthase can hydrolyze ATP to generate proton motive force (PMF) e. The Boyer model describes how rotary motion is used to synthesize ATP in ATP synthase 2. Which of the following is not associated with photosynthesis? a. Use of bacteriorhodopsin as a light-driven proton pump b. Light-driven oxidation of hydrogen sulfide in purple bacteria

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    Ala Chem

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    suns of the charges of the protons in the nucleus b. equal to the suns of the charges of the protons in the nucleus minus the sum of the electrons in the Outer shell c. lest than tire sum of the charges of the protons in the nucleus due to shielding by the electrons in the outer shell d. lest than the sum of the charges of the protons in tire nucleus due to nisielding by the electrons in the lower‚ filled shells a. greater than the suns of the charges on the protons in the nucleus 4. isotopes

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    10‚ 2005 INTRODUCTION N‚N-Diethyl-m-toluamide (DEET) is the active ingredient in many insect repellants.1 In this experiment‚ DEET will be prepared from m-toluic acid through the intermediate acid chloride and then identified by its IR and proton NMR spectra. The overall reaction is a series of two acyl substitutions and is shown in Scheme 1 below: [pic] Scheme 1 Carboxylic acids can be converted to acid chlorides by treatment with a compound such as phosphorus trichloride (PCl3)

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    Nucleophile Reaction

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    In the first step‚ 2’-OH proton of the ribonuclease sugar undergoes deprotonation by the basic imidazole ring of His12. This produces a 2’-O-‚ which subsequently acts as a nucleophile for attack towards the phosphorus atom of the phosphate group bonded to the 3’-C end of the same ribonuclease sugar. During this process‚ it causes His12 to become protonated‚ thus causing it to become acidic. 21-22 Conversely‚ His119 acts as an acid to facilitate the departure of the leaving 3’-monophosphate group

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    OEMs hence limiting sourcing option for other non-Japanese. OEMs Strategy for Proton post AFTA Malaysia has signed several FTAs bi-laterally and under the platform of ASEAN with other major economies such as China‚ Korea etc. These would also supported with the implementation of ASEAN Economic Community (AEC) by 2015 and provide wider market access to automotive OEMs and part & components manufacturers. PROTON may leverage on this access in obtaining market expansion for its current and future

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    MAXIS BERHAD COMPANY PROFILE Maxis Berhad‚ with its consolidated subsidiaries (together‚ ’Maxis ’)‚ is the leading mobile communications service provider in Malaysia with over 11.4 million mobile subscribers as of 30 June 2009. Maxis was granted licences to operate a nationwide GSM900 mobile network‚ a domestic fixed network and an international gateway in 1993. It commenced its mobile operations in August 1995 and launched its fixed line and international gateway operations in early 1996. Since

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