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Name ____ Date
Name ____ Date

... 2. Summarize the major experimental evidence that led to the development of various atomic models, both historic and current. 3. Discriminate between the relative size, charge, position and number of protons, neutrons, and electrons in the atoms of different elements. 4. Correlate atomic structure a ...
The Development of Atomic Theory
The Development of Atomic Theory

... protons and neutrons Electrons are found far away from the nucleus in an area called the electron cloud Electrons have a negative ...
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Metathesis Problems (and Some Solutions) Identified Through

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the atom
the atom

... chemically into simpler substances. Hydrogen and oxygen are examples of elements. A compound when composed of two or more types of elements combined in a definite ratio, and can be decomposed by a chemical change into two or more other pure substances. Water is a compound composed of two parts hydro ...
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File

... 59. The amount of energy required to remove the outermost electron from a gaseous atom in the ground state is known as A) first ionization energy B) activation energy C) conductivity D) electronegativity 60. In Period 2 of the Periodic Table, which Group contains the element with the highest first i ...
Understanding the Atom
Understanding the Atom

... Neutral particle in the nucleus is the neutron. Negatively charged particles that move in the space outside an atom’s nucleus is the electrons. ...
History of Atomic Theory
History of Atomic Theory

... quantities of energy possessed by electrons is very well defined as described by Niels Bohr and atomic spectra evidence. The specific location of electrons can not be known, but rather certain probabilities for their location exist based on the quantities of energy that are possible. The region arou ...
History of Atomic Theory
History of Atomic Theory

... quantities of energy possessed by electrons is very well defined as described by Niels Bohr and atomic spectra evidence. The specific location of electrons can not be known, but rather certain probabilities for their location exist based on the quantities of energy that are possible. The region arou ...
Atoms = basic unit of matter
Atoms = basic unit of matter

...  Example: carbon-12, carbon-14 Atomic Mass  Atomic masses shown on the PT (periodic table) represent a weighted average based on the relative abundance of each isotope of a particular atom.  Atomic mass unit (amu) is a unit of mass equal to 1/12th the mass of a carbon-12 atom.  amu’s are used in ...
Chemistry I Exam
Chemistry I Exam

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Stoichiometry Mole Concept Balancing Chemical Equations
Stoichiometry Mole Concept Balancing Chemical Equations

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... developing the _____ theory. Bohr incorporated the quantum theory into Rutherford’s model, which solved a lot of the problems and explained not only why atoms show _____, but predicted where the lines for hydrogen would be. Unfortunately it didn’t work very well for bigger atoms. The currently accep ...
QI2: Atomic Structure
QI2: Atomic Structure

... developing the _____ theory. Bohr incorporated the quantum theory into Rutherford’s model, which solved a lot of the problems and explained not only why atoms show _____, but predicted where the lines for hydrogen would be. Unfortunately it didn’t work very well for bigger atoms. The currently accep ...
Investigating Atoms and Atomic Theory
Investigating Atoms and Atomic Theory

... atomic model, electrons move in definite orbits around the nucleus, much like planets circle the sun. These orbits, or energy levels, are located at certain distances from the nucleus. ...
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Final Exam Review Day 1

... Many electrons are shared. They are ______________. Classify the following chemical bonds as ionic, covalent or metallic: _____ CuO _____AlBr3 _____ H2O _____ PCl5 _____ MgSO4 ...
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... the natural abundance of various isotopes of an element, it is simple to calculate the average atomic mass. For helium, there is approximately one isotope of Helium-3 for every million isotopes of Helium-4; therefore, the average atomic mass is very close to 4 amu (4.002602 amu). Chlorine consists ...
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Fall.2008.Week9.Lesson.1 - reich

The Atom
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... b. They have a nucleus that always remains the same. c. They give off energy as they fall apart. d. They give off smaller particles as they fall apart. ______15. What is the mass number of an isotope that has 5 protons, 6 neutrons, and 5 electrons? a. 1 ...
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... are atoms of the same element (same # protons) with a different # of neutrons. Therefore they have different atomic masses.  Because isotopes have different atomic masses, this is usually indicated in the name. Example Hydrogen-2 This isotope has a mass of 2 g/mol.  The atomic mass of an element i ...
Build an Atom
Build an Atom

... Depending on the atomic model used, electrons can either be found in _____________or______________. Of the two types of models, the more accurate depiction is the _____________. The atomic number of an element represents the number of each of its atoms contains, which for a neutral atom Is the same ...
teacher certification study guide middle grades gen. sci. 5
teacher certification study guide middle grades gen. sci. 5

... according to their characteristics. An acid contains hydrogen ions (H+). Although it is never wise to taste a substance to identify it, acids have a sour taste. Vinegar and lemon juice are both acids, and acids occur in many foods in a weak state. Strong acids can burn skin and destroy materials. Co ...
My Boudoir
My Boudoir

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THE ATOM

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Redox Reactions - KFUPM Faculty List
Redox Reactions - KFUPM Faculty List

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C:\Users\Jim\Documents\school stuff\atomic structure.wpd
C:\Users\Jim\Documents\school stuff\atomic structure.wpd

... c) When pure liquids are mixed, the combined volume often is different from the sum of the original volumes of the separate substances. This only makes sense if the liquids are made of particles which are of different sizes (imagine mixing equal volumes of sand and ping-pong balls) d) When elements ...
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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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