Niagara Falls Weather. Stay up to date on the latest weather forecast in Niagara Falls to help you make the most out of your next visit. Current Weather.
A subatomic particle is a unit of matter or energy that's the fundamental makeup of all matter. According in modern atomic theory, an atom has a nucleus, which is its center, or core. The nucleus contains subatomic particles: protons and neutrons. Protons are positively-charged particles.
An atom is the smallest possible unit of an element. Atoms are considered to be the basic building blocks of matter because they cannot be divided into smaller particles by any chemical process. An atom consists of three types of subatomic particles: neutrons, protons, and electrons.