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... constitute the MASS of an atom. ...
3-ELEMENTS AND THE ATOMIC MODEL. C4.8A Identify the
3-ELEMENTS AND THE ATOMIC MODEL. C4.8A Identify the

... C4.8A Identify the location, relative mass, and charge for electrons, protons, and neutrons. C4.8B Describe the atom as mostly empty space with an extremely small, dense nucleus consisting of the protons and neutrons and an electron cloud surrounding the nucleus. C4.8C Recognize that protons repel e ...
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Atomic Structure - hrsbstaff.ednet.ns.ca
Atomic Structure - hrsbstaff.ednet.ns.ca

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element - Mrs. Phillips` Physical Science Webpage
element - Mrs. Phillips` Physical Science Webpage

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Chapter 11 and 12-2 Review/Study Guide for Test
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... 1. List the major discovery or accomplishment associated with of each of the following scientists: a. Democritus – named the atom, stated it was indivisible b. Dalton – atom is positively charged sphere - said atoms of different elements are different, atoms of the same element are the same c. Thoms ...
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Chap 7: Around the Room Review
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... 1. The central part of an atom is called the _____ 2. A proton has a _____ charge. 3. The atomic number tells us __________. 4. Nitrogen’s atomic number is 7. An isotope of nitrogen containing 7 neutrons would be nitrogen_____. 5. How does the size of a negative ion compare to the size of the atom t ...
Atomic Structure/Electrons
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... 6. An atom is defined as the smallest part of an element that: a. contains at least one proton, neutron and electron. b. retains the chemical identity of the element. c. can carry an electrical charge. d. is affected in a cathode ray tube. 7. The electrical charges in an atom are located: a. only in ...
Atomic Structure/Electrons
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... 10. He discovered the electron and developed the “plum pudding” model. B 11. His five postulates make up atomic theory. A 12. His gold foil experiment led to his discovery of the nucleus. C 13. He developed the planetary model of the atom, which described the light spectrum. D 14. What is the shape ...
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Vocabulary for Periodic Table

... 3) Nucleus: the central region of an atom where most of the atom’s mass is found in protons and neutrons. 4) Electron: a negatively charged particle located outside an atom’s nucleus. 5) Atomic number: the number of protons in the nucleus of an atom. 6) Atomic mass number: the total number of proton ...
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Atoms and Molecules

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Introduction to the Periodic Table
Introduction to the Periodic Table

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Flerovium

Flerovium is a superheavy artificial chemical element with symbol Fl and atomic number 114. It is an extremely radioactive synthetic element. The element is named after the Flerov Laboratory of Nuclear Reactions of the Joint Institute for Nuclear Research in Dubna, Russia, where the element was discovered in 1998. The name of the laboratory, in turn, honours the Russian physicist Georgy Flyorov (Флёров in Cyrillic, hence the transliteration of ""yo"" to ""e""). The name was adopted by IUPAC on 30 May 2012.In the periodic table of the elements, it is a transactinide element in the p-block. It is a member of the 7th period and is the heaviest known member of the carbon group. Initial chemical studies performed in 2007–2008 indicated that flerovium was unexpectedly volatile for a group 14 element; in preliminary results it even seemed to exhibit properties similar to those of the noble gases. More recent results show that flerovium's reaction with gold is similar to that of copernicium, showing that it is a very volatile element that may even be gaseous at standard temperature and pressure, that it would show metallic properties, consistent with it being the heavier homologue of lead, and that it would be the least reactive metal in group 14.About 90 atoms of flerovium have been observed: 58 were synthesized directly, and the rest were made from the radioactive decay of heavier elements. All of these flerovium atoms have been shown to have mass numbers from 284 to 289. The most stable known flerovium isotope, flerovium-289, has a half-life of around 2.6 seconds, but it is possible that this isotope may have a nuclear isomer with a longer half-life of 66 seconds; this would be one of the longest half-lives of any isotope of a superheavy element. Flerovium is predicted to be near the centre of the theorized island of stability, and it is expected that heavier flerovium isotopes, especially the possibly doubly magic flerovium-298, may have even longer half-lives.
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