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Atomic structure
Atomic structure

... no matter how much or how little of the compound you have. These proportions are in _____________________; for example every water molecule has two hydrogen atoms for each oxygen atom (H2O). You would not say that there is 1 hydrogen for each 1/2 oxygen. So when elements combine during chemical reac ...
2005/6 - SAASTA
2005/6 - SAASTA

... Allotrope means each of two or more different physical forms in which an element can exist. Graphite, charcoal, and diamond are all allotropes of carbon. Carbon 12 and Carbon 14 are isotopes of carbon. Isotopes are two or more forms of the same element that contain equal numbers of protons but diffe ...
atom
atom

... the electrons in energy levels (the “solar system” model). • Bohr was one of the founders of quantum physics – a discipline that states that energy can be given off in small packets or quanta of specific size. • Energy levels closer to the nucleus were lower in energy than those farther away. • When ...
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... • The atomic emission spectrum of an element is the set of frequencies of the electromagnetic waves emitted by the atoms of the element. • Each element’s atomic emission spectrum is ...
History of Atomic Theory
History of Atomic Theory

... • e- behaves as energy wave AND as matter particle (light also behaves as particle and wave) Einstein had predicted that energy and matter were related in his equation E = mc2 ...
Chapter 3: Atomic Structure
Chapter 3: Atomic Structure

... Since ancient times, humans have used chemical changes to their advantage.  ores to produce metals  embalming fluids in Egypt  the Greeks were the first to try explaining chemical changes, they proposed that all matter was made of four fundamental substances (elements): fire, earth, water and air ...
Atomic structure - Mrs. Wernau's Pre-AP Chemistry
Atomic structure - Mrs. Wernau's Pre-AP Chemistry

... • Atoms are indestructible and unchangeable (Has been modified with recent discoveries in nuclear chemistry) • Elements are characterized by the mass of their atoms. • When elements react, their atoms combine in simple, whole-number ratios. Their atoms sometimes combine in more than one simple ...
Molecular Orbital Theory
Molecular Orbital Theory

... When a planet moves around the sun, its definite path, called an orbit, can be plotted. A drastically simplified view of the atom looks similar, in which the electrons orbit around the nucleus. The truth is different; electrons, in fact, inhabit regions of space known as orbitals. Orbits and orbital ...
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The Atom

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The Atom PPT - WordPress.com
The Atom PPT - WordPress.com

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Summer Assignment Ch. 2-5
Summer Assignment Ch. 2-5

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Old EXAM I - gozips.uakron.edu
Old EXAM I - gozips.uakron.edu

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Dalton`s Laws worksheet
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... Dalton’s Atomic Theory of Matter 1. Which of the following statements is part of Dalton’s atomic theory of matter? a. All atoms are identical b. All atoms of a given element are identical c. All atoms differ from one another d. Atoms of the same element can have a different shape 2. Dalton suggested ...
9182747 Chemistry Ja02
9182747 Chemistry Ja02

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Chapter 2 - Cloudfront.net
Chapter 2 - Cloudfront.net

...  Aimed alpha particles at gold foil by drilling hole in lead block.  Since the mass is evenly distributed in gold atoms alpha particles should go straight through.  Used gold foil because it could be made atoms thin. ...
Chemistry Of The Human Body
Chemistry Of The Human Body

... Structure of Proteins • Secondary structure results from near neighbor interaction. • Tertiary structure results from amino acid interaction with water. • Quarternary structure results from polypeptide interaction. ...
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Chemistry Of The Human Body

... Structure of Proteins • Secondary structure results from near neighbor interaction. • Tertiary structure results from amino acid interaction with water. • Quarternary structure results from polypeptide interaction. ...
Lab 1
Lab 1

... Primary substances, called elements, build all the materials about you. Some look similar, but others look unlike anything else. In this experiment, you will describe the physical properties of elements in a laboratory display and determine the location of elements on a blank periodic table. A. Phys ...
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(+1) + - Edublogs
(+1) + - Edublogs

... shared but not equally. For electrons that are shared in these compounds, we assign the shared electrons to the most electronegative element. We are just acting as though the electronegativity difference was large enough for the transfer of electrons to occur. ...
10 Modern Atomic Theory and the Periodic Table Chapter Outline
10 Modern Atomic Theory and the Periodic Table Chapter Outline

... 1. Only up to two electrons can occupy an orbital. 2. Electron will occupy lower energy orbitals first. Orbital energies: s < p < d < f for a given n value. 3. Each orbital in a sublevel must contain an electron before another electron can be added to any of the orbitals. © 2014 John Wiley & Sons, I ...
History of the Atom Notes Key
History of the Atom Notes Key

... English physicist, 1891-1974 Problem w/ previous model: mass of protons did not account for mass of nucleus and a nucleus of all protons (+) would repel and fall apart Experimental evidence: He bombarded metals (beryllium) with  particles, causing a radiation that was both neutral and a mass sim ...
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Unbinilium

Unbinilium /uːnbaɪˈnɪliəm/, also known as eka-radium or simply element 120, is the temporary, systematic element name of a hypothetical chemical element in the periodic table with the temporary symbol Ubn and the atomic number 120. Unbinilium and Ubn are the temporary systematic IUPAC name and symbol, until a permanent name is decided upon. In the periodic table of the elements, it is expected to be an s-block element, an alkaline earth metal, and the second element in the eighth period.To date, all attempts to synthesize this element have been unsuccessful. Its position as the seventh alkaline earth metal suggests that it would have similar properties to the alkaline earth metals, beryllium, magnesium, calcium, strontium, barium, and radium; however, relativistic effects may cause some of its properties to differ from those expected from a straight application of periodic trends. For example, unbinilium is expected to be less reactive than barium and radium and be closer in behavior to strontium, and while it should show the characteristic +2 oxidation state of the alkaline earth metals, it is also predicted to show the +4 oxidation state unknown in any other alkaline earth metal.
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