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Use the periodic table from the lesson to answer the following question.
The atomic mass of Fis
9
O 10
19
O 55

Respuesta :

Answer:

18.99u or 19u

Explanation:

Mass number=No of protons+No of neutrons

[tex]\\ \sf\longmapsto 9+10[/tex]

[tex]\\ \sf\longmapsto 19u[/tex]

  • Fluorine has atomic number=9
  • The Electronic configuration is given by

[tex]\\ \sf\longmapsto 1s^22s^22p^5[/tex]

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