Final answer:
The element with the electron configuration [Xe]6s2 4f14 5d4 is Tungsten (W).
Step-by-step explanation:
The element with the ground-state electron configuration of [Xe]6s2 4f14 5d4 is Tungsten (W), which is symbolized by the letter 'W'. This electron configuration shows that the element has filled the 4f orbital and has four electrons in the 5d orbital, following a filled 6s orbital. The notation [Xe] indicates that this element has the same electron configuration as Xenon up to the 5p orbital, and the rest of the electrons are in the orbitals beyond Xenon. This is a common practice called noble gas notation and is used for simplification in writing electron configurations of larger elements.