Answer
See the answer below.
Work Step by Step
Li, group 1, period 2: 1 valence electron.
Ti, group 4, period 4: 4 valence electrons (2 in d orbitals).
Zn, group 12, period 4: 12 valence electrons (10 in d orbitals).
Si, group 14, period 3: 4 valence electrons
Cl, group 17, period 3: 7 valence electrons