92 protons 143 neutrons and and atomic mass of 235 how many electrons does atom have

92.

For all elements, the amount of electrons will always equal the amount of protons. The only time this will change is when it has a charge, for instance, 92 or Uranium, typically has no net charge. If we used the example of Oxygen however, it has a net charge of 2-, meaning that the amount of electrons would increase by 2 to bring Oxygen to stability.

For net charges, the signs mean opposing things: - means gains while + means loses.

Hope this helps!

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.

the answer to your question is c