least common isotope of carbon‚ which is carbon-14‚ has 8 neutrons. All three isotopes of carbon have 6 protons‚ which makes them a carbon atom. Explain radioactive isotopes and one medical application that uses them. A radioactive isotope is an unstable isotope whose nucleus decays spontaneously‚ which in turn gives off energy and particles. This decay usually leads to a change in the number of protons found in the atom‚ in which the original atom is converted into an atom of a different element. An
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1) Demonstrate understanding of the terms atom and molecule. Atom= Smallest Unit of Matter Molecule= 2 or more atoms chemically bonded. 2) Describe paper chromatography. 3) Interpret simple chromatograms. A method used to separate a Solution‚ using a Paper and a beaker of water. The Substances in the Paper go up depending on their Mass. We can say that a Solution has the same substance as another solution because they form a line of the same height. 4) Describe methods of separation
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Experiments in physics lab report Department of Electrical Engineering Isabela State University Ilagan Campus‚ Calamagui 2nd‚ City of Ilagan‚ Isabela baccaljoemel@yahoo.com Submitted to: Engr. Rafael S. Ramos Physics12 Professor Submitted by: Joemel L. Baccal BSEE IIA Experiments in Physics Lab Report Joemel L. Baccal Department of Electrical Engineering Isabela State University - Ilagan Campus‚ Calamagui 2nd‚ City of Ilagan‚ Isabela baccaljoemel@yahoo.com Abstract In
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strength of attraction from the proton in the nucleus to attract one valence elctron into the outermost occupied shell becomes waker. The tendency to receive elctron decreases.. The reactivity of G17 is the tendency of the atom to receive elctron to form stable electron arrangement. The easier the atom receives electron‚ the more reactive it is. ELECRONEGATIVITY DCREASES ACROSS PERIOD The proton number increases by one unit across the period. Increase in proton
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The Transall Saga and Pay it Forward. My Place’ is the autobiographical story‚ in which Sally Morgan’s family refuses to accept their aboriginality. It was the persistent attitudes of the family which prompted Sally to commence on her journey of self discovery. The poem The Road Not Taken’ by Robert Frost also revolves around the theme of the inner journey. The poem is based of a man’s recollection of decision that he once made and its ramifications. The novel The Transall Saga’ by Gary Paulson
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atomic number 37‚ an atomic weight of 85.47‚ and a density of 1.53 Mg/m3. Its melting point is 38.9 °C‚ and it boils at 688 °C. Its atomic radius is 0.248 nm and the (+1) ionic radius is 0.148 nm. Number of p+ n° and e- Rubidium has a number of protons of 37‚ neutrons 48 and electrons 37. Uses and compounds There are relatively few commercial uses for rubidium or its compounds. Rubidium is used to make atomic clocks. But these clocks are used only for very specialized purposes where very precise
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Abstract: This experiment synthesized H-Gly-Phe-OH dipeptide using “Fmoc chemistry”. The first part of experiment was the synthesis of L-phenylalanine methyl ester hydrochloride. The methyl ester can be synthesised by reaction of thionyl chloride‚ SOCl2 and dry methanol with L-phenylalanine under reflux condition. The peptide bond was formed later in the experiment‚ where HBTU‚ DiPEA and a solution of Fmoc-Gly-OH in DMF were added to a solution of L-phenylalanine methyl ester hydrochloride in DMF
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will it be subjected to slavery under a dark lord? From the very beginning of the series‚ The Lord of the Rings establishes a very clear struggle that will affect an entire continent (and possibly lands beyond). In contrast‚ the stakes in the Twilight Saga are never much higher than the personal lives of the main characters. Granted‚ for Bella‚ Edward‚ and Jacob‚ the outcome of events may be life and death (so they are very important to them personally)‚ the issues before them are not likely to affect
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Chemistry: It is the science concerned with the atomic composition of substances‚ elements and their interactions‚ and the formation‚ decomposition and properties of molecules. -Biological chemistry or Biochemistry is the biological or physiological chemistry of living organisms and of the chemical changes occurring therein. Structure of Matter: All living and nonliving things are composed of matter. Matter; is anything that occupies space and has mass. Mass is the amount of matter in an object
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PLASTIDS Plastids are large cytoplasmic organelles. Plastids are major organelles found in the cells of plants and algae. Plastids are the site of manufacture and storage of important chemical compounds used by the cell. Plastids often contain pigments used in photosynthesis‚ and the types of pigments present can change or determine the cell’s colour. The term plastid was derived from the Greek word plastikas meaning formed or moulded. This term was coined by Schimper in 1885. In plants
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