Final answer:
Titanium (Ti) has two unpaired electrons in its electron configuration, and so does its ion, Ti²⁺. Both Ti and Ti²⁺ are paramagnetic due to these unpaired electrons.
Step-by-step explanation:
The question asks about the number of unpaired electrons in titanium (Ti) and titanium(II) ion (Ti²⁺). To answer this, we must look at the electron configuration of Ti and then remove two electrons to represent the Ti²⁺ ion.
Titanium (Ti) has an atomic number of 22, so its electron configuration is [Ar] 3d² 4s², which means there are two unpaired electrons in the 3d subshell. When titanium forms the Ti²⁺ ion, it loses two electrons from the 4s orbital, so the electron configuration becomes [Ar] 3d², still having two unpaired electrons.
- Ti has two unpaired electrons.
- Ti²⁺ has two unpaired electrons.
Both Ti and Ti²⁺ are paramagnetic due to having unpaired electrons. Paramagnetic substances are attracted to magnetic fields, while diamagnetic substances (with no unpaired electrons) are slightly repelled by them.