Questions and Answers
What are the three main subatomic particles and their charges?
proton (positive), neutron (neutral), electron (negative)
Explain the difference between an atom and a molecule.
An atom is the basic unit of a chemical element, while a molecule is a group of atoms bonded together.
Describe the concept of states of matter in relation to particles.
States of matter are determined by the arrangement and energy of particles. In solid, particles are closely packed and vibrate; in liquid, particles are close but can move past each other; in gas, particles are far apart and move freely.
