Chemistry Atomic Structure: The Electron A myriad of trends occur on the periodic table‚ whether it is defined through the size of the atoms or the first ionization energy that may occur‚ many other trends can be found simply looking horizontally or vertically on to the table. As you look from left to right you can see that the reactivity of the elements increase‚ this is due to the number of electrons increasing on the shell. This also once you go down the table; the shells become further and
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Democritus was the first scientist to create a model of the atom as well as the first to discover that all matter is made up of indivisible particles called atoms. His belief in atoms was that atoms were small‚ hard particles that were all made of the same material but were different shapes and sizes. Furthermore he believed that atoms were infinite in shape‚ in number‚ always moving and capable if joining together. Unlike Democritus’s belief‚ Aristotle’s belief about the atom were completely different
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unit measurement necessary? What is an astronomical unit‚ how is it used to measure distances in space‚ and why is this unit measurement necessary? How fast can our fastest spacecraft travel? What are the limitations of manned space missions with respect to exploring the universe‚ the galaxy‚ the solar system‚ and other planets? What are the major components of the universe? How do scientists think the universe was created? What evidence have scientist used to develop this theory?
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SOLAR SYSTEM About 5 Billion years ago‚ y There was no Sun‚ no Earth& no Moon y Only cosmic dust and gasses drifted in the darkness of space SOLAR SYSTEM THEORY The solar system was formed by a slowly spinning cloud of gas and cosmic dust‚ gradually the cloud began to spin faster and faster this formed a large spinning whirl at the centre and smaller whirls surrounding it at various distances. SOLAR SYSTEM THEORY The huge and heavy centre became hot enough to start thermo nuclear
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The Solar System The majority of the solar system is made up of the sun and all of the planets that orbit it. There are also moons‚ comets‚ asteroids‚ dust‚ gas‚ and dwarf planets. The sun makes up about 98 percent of our solar system. Because of the suns large mas it pulls every thing in the solar system towards it. The planets orbit around the sun because of the sun pulling it towards it and the planets trying to fly outer space at the same time‚ which balances it out. It was once believed that
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formation of solar systems | | This paper concludes some scientific explanation of how the universe was created. | | | 8/1/2011 | | SCI224 Fundamentals of Astronomy Final Paper ------------------------------------------------- Instructor: William McMullen‚ Ph.D. Name: Johanne Val ------------------------------------------------- Due Date: 8/1/11-Revised Copy For your final paper‚ pick of the three topics below. 1. The formation of solar systems What is the
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Niels Bohr Full Name: Niels Henrik David Bohr Date of Birth: 7th October‚ 1885 Place of Birth: Copenhagen‚ Denmark Date of Death: 18th November‚ 1962 A young Niels Bohr while he was studying at Gammelholm Grammar School Niels Bohr was a prominent physicist in his time. He made large contributions to the field of quantum mechanics and also in the understanding of atomic structure. Niels Bohr worked on the well known Manhattan Project‚ and received the Nobel Prize for Physics in 1922. Niels Bohr
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attributes‚ it is a transition metal‚ which denotes high boiling and melting points. Both a conductor of heat and electricity‚ Copper is ductile and malleable. Its symbol “Cu” derives from the Latin cuprum. Copper is also valued for its two-for-one practicality: it is a vital nutrient that has antibacterial properties. Aside from what many people generally know about Copper (the “common knowledge‚” so to speak)‚ there is much information regarding its atomic buildup. Every element’s atoms are composed
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Mr. Lawson 12/14/12 Neils Bohr Niels Henrik David Bohr was born in Copenhagen on October 7‚ 1885‚ as the son of Christian Bohr‚ Professor of Physiology at Copenhagen University‚ and his wife Ellen‚ née Adler. Niels‚ together with his younger brother Harald (the future Professor in Mathematics)‚ grew up in an atmosphere most favourable to the development of his genius - his father was an eminent physiologist and was largely
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Atomic Structure Lab Purpose: This lab was designed to make the observers use their senses and by doing that‚ the observers would realize how difficult it was for the scientists in the 17th century to perform in their fields. Data Tables: Ob-scertainer #10 Hypothesis Actual Ob-scertainer #1 Hypothesis Retest Actual Ob-scertainer #7 Hypothesis Actual Ob-scertainer #6 Hypothesis Actual
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