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discovering chemistry

  1. What is the conversion of 1 amu to grams
    1 amu= 1.661 × 10 ‐²⁴
  2. What does relative atomic mass refer to?
    The times heavier a mass of an element's atom is when compared to 1/12th of the mass of an atom of carbon 12 or (1.661×10-²⁴)
  3. What mass is represented on the periodic table?
    The AMU that is the average amongst all naturally occurring isotopes of that element with consideration for their abundance
  4. What are the principal shells of an atom.
    Different energy levels where electrons reside and represented as n. The lowest energy and nearest the nucleus is 1
  5. What are sub shells
    • Represented as L and labeled as either s p d f in accordance with how many electrons they can hold. S=2 p=6 d=10 f = 14
    • They are the areas where electrons are most likely located within a principal shell
  6. What is the state of an atom at its lowest energy level
    Ground state.
  7. When energy is added to an atom or molecule what state is it
    Excited state?
  8. What is the formula for subshell capacities?
    (2l+1)
  9. How many electrons can fill an orbital and how do they spin in relation to eachother
    2, opposite
  10. In block diagrams how are electrons filled in
    First, each block of the subgroup gets an electron with the same spin. The remaining electrons are divided amongst the blocks with opposite spin until the subgroup is full or no electrons remain.maximum electrons per box is two
  11. What are columns and rows called on the periodic table
    Rows are periods and columns are groups
  12. Define allotrope
    • Different forms of the same element also called polymorphs
    • Example: graphite and diamonds are made solely of carbon but in different forms.
Author
EricRM2011
ID
364954
Card Set
discovering chemistry
Description
basic chemstry
Updated

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