VdW power, number of electrons (ZMK-14) Determine the number of electrons of the following molecules or atoms. C6H12O6 C3H6O H2O NaBr Na Na+ H3O+ CO2-3

  Exercise: ZMK-14    

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Determine the number of electrons of the following molecules or atoms.

1. C₆H₁₂O₆
2. C₃H₆O
3. H₂O
4. NaBr
5. Na
6. Na⁺
7. H₃O⁺
8. CO2-3

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Solution:

By means of the atomic number (=number protons) of a elements can on the number the electrons closed are: in particular: identical at neutral elements, accordingly adjusted at negative or positive loading.

1. C₆H₁₂O₆ → 6·6+12·1+6·8 = 96 electrons
2. C₃H₆O → 3·6+6·1+8 = 32 electrons
3. H₂O → 2·1+8 = 10 e^–
4. NaBr → 11+35 = 46 e^–
5. Na → 11 e^–
6. Na⁺ → 11-1= 10 e^–
7. H₃O⁺ → 3·1+8-1 = 10 e^–
8. CO2-3 6+3·8+2 = 32 e^–

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