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Atoms/Periodic Table Study Cards

Holly B Science 8th grade English 36 cards

ushouldknowthisstuff

Cards in this deck (36)

  1. 1Dalton TheoryMatter is made of atoms, which can't be divided into smaller pieces. Atoms of an element are the same, and different elements are made of different kinds of atoms.
  2. 2Rutherford TheoryAtom consisted of a nucleus that was positive. The electrons move around the outside of the nucleus at random.
  3. 3Bohr TheoryElectrons move around the nucleus in circular orbital patterns. Each shell holds a certain amount. 1st Shell: 2
    2nd Shell: 8
    3rd Shell: 18 (8)
  4. 4Thompson TheoryAtom consisted of a positive sphere w/ negatively charged particles called electrons mixed throughout. (Plum Pudding Model)
  5. 5Proton Mass & ChargeMass: 1 amu
    Charge: +1
  6. 6Neutron Mass & ChargeMass: 1 amu
    Charge: 0
  7. 7Electron Mass & ChargeMass: nearly 0 amu
    Charge: -1
  8. 8How to find number of protons in elementThe number of protons is the same as the atomic number.
  9. 9How to find number of neutrons in elementSubtract the atomic number from the atomic mass (atomic mass - protons)
  10. 10How to find number of electrons in elementIt is equal to the atomic number (number of protons)
  11. 11MatterAnything that has mass and takes up space
  12. 12MassAnything that has weight and shape
  13. 13Atomsmallest component of an element
  14. 14Protonstable, positively charge subatomic particle in nucleus
  15. 15Neutronelementary particle w/ no charge, mass slightly greater than proton
  16. 16Electronparticle of atoms w/ negative charge and a mass of nearly zero
  17. 17Nucleuspositive charged mass in center of atom, made of protons & neutrons
  18. 18Electron cloud/orbitalselectrons around/orbiting the nucleus
  19. 19Elementsubstance composed of atoms that have the same atomic number/cannot be broken into simpler substances by chemical means
  20. 20Moleculegroup of atoms bonded together
  21. 21Compoundcomposed of two or more separate elements; a mixture
  22. 22Element Organization on Periodic Tableby atomic number
  23. 23—ushouldknowthisstuffushouldknowthisstuff
  24. 24—Bohr ModelBohr Model
  25. 25—Lewis Dot DiagramLewis Dot Diagram
  26. 26Electrons in an Energy Level1st: 2 electrons
    2nd: 8 electrons
    3rd: 18 electrons (8)
  27. 27(Name, properties, electrons) Group 1:Alkali metals; very reactive; 1 valence electron
  28. 28Group 2:Alkaline Earth Metals; reactive, combined always w/ nonmetals; 2 valence electrons
  29. 29Group 3-12:Transition Metals; less reactive, harder, used "as metal"; valence electron # varies
  30. 30Group 13:Boron Family; metalloids nonmetals; 3 valence electrons
  31. 31Group 14:Carbon Family; elements important to life; 4 valence electrons
  32. 32Group 15:Nitrogen Family; 3/4 of atmosphere; 5 valence electrons
  33. 33Group 16:Oxygen Family; necessary for respiration; 6 valence electrons
  34. 34Group 17:Halogens; very reactive, volatile, diatomic, nonmetals, combined in nature; 7 valence electrons
  35. 35Group 18:Noble Gases; VERY nonreactive; 8 valence electrons (full valence shell)
  36. 36Periodic Table 'Staircase'Puts a barrier between the metals-to the left-and the nonmetals-to the right.

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8th grade Science Flashcards on Atoms/Periodic Table Study Cards, created by Holly B on 17/12/2017.
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