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Scientists
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Models
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Atomic Theory
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The Periodic Table
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Light
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Vocab
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Scientists Atomic Theory The Periodic Table Models Light Vocab $100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 $500
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Name the scientists in chronological order.
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Dalton,Thomson, Rutherford, Chadwick, and Bohr
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Who used gold foil to discover the nucleus?
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Rutherford
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Which scientists used this experiment?
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Thomson
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He suspected that the emission spectrum provided info about the structure of atoms
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Bohr
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Video daily double!
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http://www. youtube. com/watch. v=gO9CKkbLUiIhttp://www. youtube
What did Rutherford find was causing the deflections of alpha particles? Why did most of the alpha particles go straight through the atom?
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The very small, dense, positively charged nucleus
The very small, dense, positively charged nucleus. Most of the alpha particles went through b/c the electron cloud is mostly empty space Like a marble in a football field.
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Who’s model is the solid sphere?
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Dalton
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Name the model which has a nucleus surrounded by electrons on an orbit.
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Bohr's planetary model
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Name the model that resembles choc chip cookie dough.
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Thomson's Plum Pudding model
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Who developed the “nuclear” model?
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Rutherford
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What is an electron cloud?
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A region where electrons may exist. It has no definite borders.
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Chadwick discovered which heavy particle in the atom.
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The neutron
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One of Dalton’s Principles incorrectly stated that atoms of a given element are identical. Why is this incorrect? Give 2 reasons.
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Because isotopes have a different # of neutrons have different properties. Ions of a given element have a different # of electrons and have different properties.
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Dalton's theory that atoms combine in simple whole-number ratios, was based on this law…
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The Law of Definite Proportions
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The law that states that atoms merely rearrange in chemical reactions…
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The Law of Conservation of Mass
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Which law indicates that generic acetaminophen is the same as Tylenol
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The Law of Definite Proportions
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Look at the periodic table
Look at the periodic table. What does the whole number in each block represent? (two answers)
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The number of protons/ atomic number
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When an ion has a -1 charge, it has one less________.
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proton
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What is the number of protons, neutrons, and electrons in a bromine-80 ion with a negative charge?
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35 p, 45 n, 36 e
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Based on the periodic table, the most abundant isotope of magnesium is the magnesium- _?__ atom.
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The magnesium-24 atom b/c the average is closest to 24.
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Write the noble gas configuration for chlorine, Cl.
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[Ne]3s2 3p5
![[Ne]3s2 3p5](http://slideplayer.com/slide/14117285/86/images/49/%5BNe%5D3s2+3p5.jpg "[Ne]3s2 3p5")
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The creation of the concept of these rings helped us understand how light is emitted.
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Bohr’s orbits
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Who’s rule says to spread out electrons in orbitals before pairing them up?
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Hund’s Rule
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Explain how light (or any type of radiation) is given off.
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Electrons gain energy and move to the excited state, then return to the ground state and give off that energy as light.
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Daily Double!!
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What is the visible spectrum?
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The very small range of radiation that our eyes see (ROYGBIV)
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These are distinct lines of color, unique to each element, that are produced when light is passed through a prism.
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The line emission spectrum
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What is mass number?
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The number of protons and neutrons in the nucleus.
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What are the shapes of the s and p orbitals?
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spherical and dumbell
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What is this type of symbol called (not the element)
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The nuclear symbol which tells the specifics of the structure of the isotope
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Which particles in the atom have coulombic forces of attraction?
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The proton and the electron; opposites attract.
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Define characteristic physical properties?
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Properties that are unique to each element
Properties that are unique to each element. Line emission spectra, density, and boiling point are example.
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Double Jeopardy!!
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Daily Double!!
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Write the Final Question Here
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