Respuesta :
Answer;
B. It involves loss of electrons.
Explanation;
- Oxidation occurs when electrons are lost by an atom while reduction refers to the gain of electrons by an atom.
- In this case, magnesium atom reacts with sulfur to form magnesium sulfide by loosing two electrons and forming magnesium ion (Mg2+). Therefore magnesium undergoes oxidation.
- Sulfur, on the other hand will gain electrons to form Sulfide ions, therefore it undergoes reduction.
- Therefore; In magnesium sulfide (MgS), magnesium loses two electrons and becomes a cation with a positive-two charge. Likewise, sulfur obtains the two electrons lost from magnesium and becomes an anion with a negative-two charge. However, the overall charge of MgS is zero.
