Which of the following statements best explains why potassium (K) bonds easily with bromine (Br)?
a
Potassium and bromine both have valence electrons in the fourth energy level.
b
Potassium and bromine have the same number of electrons in their highest energy levels.
c
Potassium needs one electron to complete its highest energy level, and bromine has an extra electron in its highest energy level.
d
Potassium has one electron in its highest energy level, and bromine needs one electron to complete its highest energy level.
d
Potassium has one electron in its highest energy level, and bromine needs one electron to complete its highest energy level.