There is something wrong with the question, it must be 5d not d5. The "d block" on the periodic table are groups 3-12 or the transition metals, these are the one compose in the d block and the elements' electron configurations end in d. These are the following that ends with 5d:Lutetium - [Xe]6s24f145d1Hafnium - [Xe]6s24f145d2Tantalum - [Xe]6s24f145d3 Tungsten - [Xe]6s24f145d4Rhenium - [Xe]6s24f145d5Osmium - [Xe]6s24f145d6Iridium - [Xe]6s24f145d7Platinum - [Xe]6s14f145d9Gold - [Xe]6s14f145d10Mercury - [Xe]6s24f145d10
check the attached file for the periodic table with electronic configuration