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Group 4 is a group of elements in the periodic table. It contains the elements titanium (Ti), zirconium (Zr), hafnium (Hf) and rutherfordium (Rf). This group lies in the d-block of the periodic table. The group itself has not acquired a trivial name; it belongs to the broader grouping of the transition metals.
26 Mar, 2012 how many 0. Titanium is a strong silvery metal that was discovered in 1791. Titanium is a chemical element that is represented by the chemical symbol Ti and the atomic number 22. It is the seventh most abundant metal in the crust of the Earth where it is always found bonded to other elements.