The electron configuration of Tantalum (Ta) is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d3.
In the noble gas notation, it can be abbreviated as [Xe] 6s2 4f14 5d3, where [Xe] represents the electron configuration of the noble gas xenon that precedes tantalum in the periodic table.