Question

The last two sub shells in an atom are 3d6 4s2 (Six electrons in 3d& two electrons in 4s. Find out the total number of electrons and the total number of sub shells in this atom.​

Answer 1

Answer:

Total number of electrons: 26

Total number of sub-shells: 7

Step-by-step explanation:

If the last two sub-shells of the atom are 3d⁶ 4s², then the electron configuration of the atom will be 1s² 2s² 2p⁶ 3s² 3p⁶3d⁶ 4s².

Here we can find that the total number of sub-shells are 7 and electrons are (2+2+6+2+6+6+2) or 26.

please mark as brainliest.