Question

if the molecular species has a charge, this must be taken into account by adding or subtracting ____________ from the total number of valence

○ electrons, protons
○ protons, protons
○ protons, electrons
○ electrons, electrons

Explanation:

Valence electrons are involved in chemical bonding. A charged molecular species has gained or lost electrons. For a negatively - charged species, electrons are added to the total number of valence electrons, and for a positively - charged species, electrons are subtracted from the total number of valence electrons. Protons are in the nucleus and do not change in chemical bonding to account for charge in this context.

Answer:

electrons, electrons