[tex]need \: help \: please \: asap :([/tex]

1. The smallest particle of an element is?
A. Molecule
B. Atom
C. Debris
D. Fillet

2. The smallest particle of matter is?
A. Molecule
B. Atom
C. Debris
D. Fillet

I'LL MARK AS THE BRAINLIEST WHOEVER ANSWER THIS ACCURATELY..