What the electron configuration using subshell of Pt
The electron configuration of Platinum (Pt) using subshells is:
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d9
Note that the 5d subshell is not completely filled, as there are only 9 electrons in it, rather than the maximum of 10. This is due to the phenomenon of electron configuration stability, and is commonly observed in transition metals.
The electron configuration of Pt (Platinum) can be determined by referring to the periodic table and following the Aufbau principle.
The atomic number of Pt is 78, meaning it has 78 electrons.
To determine the electron configuration, you can fill up the orbitals in the following order: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f.
For Platinum (Pt):
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^9 6p^1
So, the electron configuration using subshells of Pt is:
1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^9 6p^1