atoms, models, electrons
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| isotope | forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei; (differ in relative atomic mass but not in chemical properties)
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| valence electron | electrons located in the outer energy level or shell of the electron cloud
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| Bohr's Model | model of the atom that includes all the subatomic particles and their number and location
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| Lewis Dot Model | model of the atom that includes the symbol in the center and then dots around it representing the VALENCE electrons
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| chemical symbol | 1-2 letter representation of an element's name (either first letter, 2 letters of word or Greek/Latin name)
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| ion | charged atom (that has either gained or lost electrons)
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| metal | category of elements on left side of periodic table; shiny, ductile, malleable, and strong
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| non-metal | category of elements on the right side of the periodic table; opposite properties of metals
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| metalloid | category of elements along the "zigzag" between metals and nonmetals; have properties of both
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| group/family | column in the periodic table; shared properties
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| period | row in the periodic table
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| coefficient | in a chemical formula, the number in front of the symbol that tells how many MOLECULES of that compound there are
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| subscript | in a chemcial formula, the SMALL number below telling how many atoms of that particular element are present
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Created by:
jparsons
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