In: Chemistry
Identify the atoms that correspond to each of the following electron configurations. Then, write the Lewis symbol for the common ion formed from each atom: (a) 1s22s22p5 (b) 1s22s22p63s2 (c) 1s22s22p63s23p64s23d10 (d) 1s22s22p63s23p64s23d104p4 (e) 1s22s22p63s23p64s23d104p1
Based on electronic configuration find out the total number of electrons by counting all the electrons from all the orbitals. This will give the atomic number of element. Then find out the common ion by replacing or additng to outer most electron from orbital as:
(a) 1s22s22p5
Total number of electrons = 9 [atom belongs to this atomic number = F]
common ion = F-
(b) 1s22s22p63s2
Total number of electrons = 12 [atom belongs to this atomic number = Mg]
Common ion = Mg2+
(c) 1s22s22p63s23p64s23d10
Total number of electrons = 30 [atom belongs to this atomic number = Zn]
Common ion = Zn2+
(d) 1s22s22p63s23p64s23d104p4
Total number of electrons = 34 [atom belongs to this atomic number = Se]
Common ion = Se2-
(e) 1s22s22p63s23p64s23d104p1
Total number of electrons = 31 [atom belongs to this atomic number = Ga]
Common ion Ga3+