Friday, December 14, 2007

Alexandria, 7mm Rifle, Category

chemistry test, 7 Class

A chemical test on atomic structure (protons, electrons and neutrons), the periodic table of elements (PES), chemical calculations and electron configuration (quantum number).

test
  • What is the atomic number and mass number?
    How many protons, neutrons and electrons has 14 6 C?
  • How has Dalton described the atom model?
    What is it today still? How much are
  • 19g mol CH 4?
  • Which of these gases has a higher density? H 2 (hydrogen) or Cl 2 (chlorine gas)?
  • Calculate the mass fraction of oxygen in the CaSO 4 (gypsum).
  • Elekronenkonfiguration What do K and Sr? Give in shorthand on!
  • Determine the quantum numbers for N. In cell spelling!
  • What does the Hund's rule?
  • What is the electronegativity?

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