3024.75 Joules needed to warm iron
<span>We have ground strate configurations of electrons,if electrons are filled in order of increasing energy. When there are electrons are in higher orbitals, we have an atom in an excited state.
B, and C are excited states.
In B, 2 electrons can fit in the 4s orbital, and that should fill fully before the 4p orbitals.
In C, the same is true for 5s and 5p
In D, this is not an excited state because 4s fills before 3d</span>
The correct response I believe is D. The reaction rate increases because the probability of collisions increases as there are more Zn atoms to react.
There are two valence electrons in a single atom of magnesium.
