Step 1: Identify element 114.
The element with atomic number 114 is Flerovium, symbol Fl.
Step 2: Place it in the periodic table.
Flerovium sits in Group 14, directly below lead, so it shares that group's valence pattern.
Step 3: Recall the Group 14 valence configuration.
Every Group 14 element ends in \[ ns^2 np^2 \] giving four electrons in the outer shell.
Step 4: List the Group 14 family.
These are carbon, silicon, germanium, tin, lead, and flerovium. The matching outer shell must also be $ns^2 np^2$.
Step 5: Screen the options.
Argon is a noble gas (Group 18), selenium is Group 16, and titanium is a Group 4 transition metal. Only germanium belongs to Group 14.
Step 6: Confirm by configuration.
Germanium has $4s^2 4p^2$, analogous to flerovium's $7s^2 7p^2$, so X is germanium, option 2.
\[ \boxed{\text{Ge}} \]