Question

The atomic number of Aluminium is 13 and Fluorine is 9. How Many electrons and protons are present in Al3+, F- ions? Write the electrons configuration of the ions.

Answer 1

Answer:

• The electron configuration of an aluminum ion, Al3+, is 1s2, 2s2, 2p6.
• 10 electrons,
• Al3+ indicates an ion of aluminum having a charge of + 3. I.e., since an aluminum atom normally has 13 protons and 13 electrons, this ion has 10 electrons (-10 charge) and 13 protons (+ 13 charge) giving it a charge of + 3 (-10 + 13 = +3).