Are there any elements which exhibit the Simple(Primitive) Tetragonal Bravais Lattice?
closed as too broad by Jon Custer, Tyberius, Todd Minehardt, airhuff, Geoff Hutchison Feb 6 '18 at 17:47
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Chances are there are no such elements. This link seems to suggest so, but I wouldn't put too much trust in it. (To begin with, it claims only one crystal structure for each element, ignoring any polymorphs.) So what? This is not a fact of any consequence. It is about as (un)important as the knowledge that only one of the element names in English starts with "K", and none start with "J". Besides, both may change over time. New high-pressure crystal modifications of elements are discovered every now and then, and will be for a while, because no matter how far you reach, there is always a higher pressure.
Come to think of it, there are millions of different crystal structures out there. Elemental compounds are just a very tiny minority. Surely there are examples of all Bravais lattices (not that it matters much).
So it goes.