JC1 H2 Chemistry Atomic Structure Tutorial 1. How many protons‚ neutrons and electrons are there in 3+ ion? 2. Write down the electronic configuration of (a) Si (atomic no. 14) (b) Sc (atomic no. 21) (c) Co (atomic no. 27) 3. Which of the following ions contains an unpaired electron? A calcium ion B copper(II) ion C potassium ion D titanium(IV) ion 4. Some isotopes are unstable and decompose naturally. In one type of decomposition‚ a neutron in the nucleus decomposes to form a proton‚ which is
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Separation and Qualitative Determination of Cations and Anions Instructor’s Guide Master Materials List (complete for 24 students working in pairs) Silver nitrate‚ AgNO3‚ 0.2 M‚ 100 mL* Silver nitrate‚ AgNO3‚ 0.1 M‚ 100 mL* Cupric nitrate‚ Cu(No3)2‚ .02 M‚ 100 mL* Zinc nitrate‚ Zn(NO3)2‚ 0.2 M‚ 100 mL* Ferric nitrate‚ Zn(NO3)2‚ 0.2 M‚ 100 mL* Hydrochloric acid‚ HCl‚ 6 M‚ 125 mL* Nitric acid‚ HNO3‚ 6 M‚ 125 mL* Ammonia‚ NH3‚ 6 M‚ 125 mL* Sulfuric acid‚ H2SO4‚ 6 M‚ 125 mL* Acetic acid
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DETECTION OF EYE MOVEMENTS USING ELECTROOCULOGRAPHY A Graduate Project Report submitted to Manipal University in partial fulfilment of the requirement for the award of the degree of BACHELOR OF ENGINEERING In Electronics and Communication Engineering Submitted by Rajesh Sunkara Reg. No: 090907193 Under the guidance of Ms. Shruthi.K Assistant Professor DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING MANIPAL INSTITUTE OF TECHNOLOGY (A Constituent College of Manipal University)
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hydrogen and one part oxygen) sepaprate that and you get hydrogen gas and oxygen gas. Anyway‚ hydrogen gas and sodium are both positive ions (atoms)‚ because opposites attract both of the positive ions are attracted to the negative electrode (cathode) in this case my cathode is a strip of magnesium. The chlorine gas and the oxygen gas are both negative ions and so they are attracted to the anode which in this case is iron. Now the chemical reaction REDOX which is short for reduction/oxidation reaction
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orbital. This lowers the energy gap and therefore means less energy is required to excite electron from ground state to excited state. Mass spectrometry: Mass spectrum gives the weight of a molecule Mass spectrometer converts sample into ions‚ and that these ions can be further fragmented (broken down) into smaller molecules. Ionisation can be achieved using various different techniques‚ electron ionisation‚ chemical ionisation and Fast atom bombardment. When sample is ionised the analyser portion
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solution inside a test tube was heated while another one was cooled. The changes in color of the solution indicated that a shift in the equilibrium occurred. II. KEYWORDS: Chemical equilibrium‚ Le Chatelier’s Principle‚ dissociation‚ common ion effect‚ uncommon ion effect‚ shift III. INTRODUCTION Chemical equilibrium is reached when opposing reactions- forward and reverse reactions- occur at the same rate. This means that the rate at which the reaction forms the products is equal to the rate at which
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Chapters 7&8 Gauge Sheet 7.1- Ions To find the number of valence electrons in an atom of a representative element‚ simply look at its group number. Atoms of metals tend to lose their valence electrons‚ leaving a complete octet in the next-lowest energy level. Atoms of some non-metals tend to gain electrons or to share with another non-metal to achieve a complete octet. The gain of negatively charged electrons by a neutral atom produces an anion. 7.2- Ionic Bonds and Ionic Compounds Although
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Lesson 03.01: History of the Periodic Table Explain how scientific observations led to the development of‚ and changes to‚ the periodic table. Russian chemist Dmitri Mendeleev set out to organize the 63 known elements according to their properties. Mendeleev wrote the name‚ mass‚ and chemical properties of each element on a separate card and arranged the cards by various properties‚ looking for trends and patterns. When he arranged the elements by increasing atomic mass‚ Mendeleev noticed that similar
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Materials Week 9 12.11 Iron titanate forms in the ilmenite crystal structure that consists of an HCP arrangement of ions. (a). Which type of interstitial site will the ions occupy? Why? Since this ratio is between 0.414 and 0.732‚ the ions will occupy octahedral sites (b). Which type of interstitial site will the ions occupy? Why? Since this ratio is between 0.414 and 0.732‚ the ions will also occupy octahedral sites. (c). What fraction of the total tetrahedral sites will be occupied? No tetrahedral
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called ions. Those ionic substances are broken down by electrolysis. Electrolysis is the breakdown of a substance by electricity‚ and it only happens in liquids. The liquids that can be electrolyzed are called electrolytes. When said electrolyzed‚ means that the compounds in solutions are broken down when they conduct electricity. Its necessary the use of electrodes since it conducts the electricity to the solution. The electrodes are needed to be an anode‚ which receives the negative ions‚ and the
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