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Directions: Read the article below. For each section (in bold), write 2
Directions: Read the article below. For each section (in bold), write 2

Chemistry 1. The Periodic Table displays the
Chemistry 1. The Periodic Table displays the

... how to use the Periodic Table to identify alkali metals, alkaline earth metals and transition metals and identify trends in ionization energy, electronegativity, and in the relative size of ions and atoms. d. how to use the periodic table to determine the number of electrons available for bonding. e ...
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... number of atoms on both sides. • Use only molecules or atoms already in the formulas • No new compounds used or created • Start with the element you need more of! ...
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...  Electrons in the outermost shell are called valence electrons  If the valence shell is full = the atom is stable  If the valence shell is not full = the atom is not stable Note: Think of the shells as being 3D like spheres, not 2D like circles! ...
Chapter 4 Atomic Structure
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... regardless of the element used to produce them. All elements must contain identically charged electrons. b) Atoms are neutral, so there must also be positive particles in the atom to balance the negative charge of the electrons c) Electrons have very little mass, therefore atoms must contain other p ...
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ATOMS - Mr. Deets

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... 68. q = mHf (melting), q = mHv(vaporizing), q = mC(change in temperature) (raising/lowering) *Tables T and B 69. Combined gas law on Table T *If given STP, given temp and pressure (Table A) 70. Pressure and volume indirect, P up, V down (PVC pipe) 71. Temperature and pressure direct, T up, P up 72. ...
Chapter Review- Josh and Niels 1. Rutherford`s Atom • Rutherford`s
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... (0.35)] = 2.85. Thus we expect the forces operating on the valence shell in calcium to be greater than those in potassium, leading to a smaller radius in calcium. (b) Chlorine should be larger than fluorine. We would expect Z* to be very similar, since the two atoms are in the same group of the peri ...
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Biochemistry-Review of the Basics

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Early Atomic Theories
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... internet if you don’t know) (2 marks) ________________________________________________________________________________ 5. Refer to the cartoon on p.140. In the middle ages, alchemist who studied alchemy had a goal in mind. They try to transmute (change) metals into gold but they were never successfu ...
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... two electrons. • The second energy level is larger because it is farther away from the nucleus. It holds a maximum of eight electrons. • The third energy level is larger still and holds a maximum of 18 electrons. ...
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... ionic bond- type of chemical bond involving the transfer of electrons and the formation of ions; can often form between a metal and a non-metal ionic compound- compound where two or more ions are held next to each other by electrical attraction isotopes- atoms having the same number of protons (ato ...
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... Bang nucleosynthesis during the first 20 minutes of the universe[9] in a ratio of around 3:1 by mass (approximately 12:1 by number of atoms). Almost all other elements found in nature, including some further hydrogen and helium created since then, were made by various natural or (at times) artificia ...
3. Atomic Structure and the Periodic Table
3. Atomic Structure and the Periodic Table

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Atomic Theory Class #5
Atomic Theory Class #5

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...  The electron is in its lowest energy when it is in ___________ closet to the __________.  This electron orbit at the lowest energy state is separated from the ___________ by a large empty space where the electron ______________ exist.  The energy of the electron is ________________ when the elec ...
200 Things to Know to Pass the Chemistry Regents
200 Things to Know to Pass the Chemistry Regents

... They emit energy as light when they fall from higher energy levels back down to lower (ground state) energy levels. Bright line spectra are produced. 19. Elements are pure substances composed of atoms with the same atomic number. They cannot be decomposed. A compound differs from an element in that ...
200 Ways to Pass the Chemistry
200 Ways to Pass the Chemistry

... They emit energy as light when they fall from higher energy levels back down to lower (ground state) energy levels. Bright line spectra are produced. 19. Elements are pure substances composed of atoms with the same atomic number. They cannot be decomposed. A compound differs from an element in that ...
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200things2know

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Unit 2 - Atomic Structure
Unit 2 - Atomic Structure

... atoms. There are different kinds called elements. Atoms of the same element are identical in size, mass, and other properties; atoms of different elements differ in size, mass, and other properties. Atoms cannot be subdivided, created, or destroyed. Atoms of different elements combine in simple, who ...
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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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