Is titanium an elemnt, compound, heterogenus mixture ,or homogenous mixture?

http://en.wikipedia.org/wiki/Titanium

Titanium is an element, not a compound or mixture. To determine this, we can refer to the periodic table of elements. Titanium (symbol: Ti) has an atomic number of 22, which means it has 22 protons in its nucleus. Elements are substances that cannot be broken down into simpler substances by chemical means. Titanium meets this criteria and is therefore classified as an element.