B. Taxonomy
C. Categorization
D. Spectrometry
Usually within an atom, the protons and electrons are equal to make the atom have a neutral charge.
However, there are cases in which the protons and electrons are different, such as Cations and Anions. Cations end up having a positive charge (less electrons than protons), and Anions end up having a negative charge (more electrons than protons).
I hope this helps!
B.PARTICLE VIBRATION DECREASED
C.PARTICLES MOVED FARTHER APART
D.PARTICLES MOVED RANDOMLY