The particles of matter unite together to give a matter its shape.
 Two of the properties of these particles of matter are:
1. Particles have spaces in between them which allows other particles of matter to fill the gap and form various other substances.
2. Particles are constantly in random motion. They possess high kinetic energy which helps them in continuing this motion. 

Properties of Particles

Particles are tiny units of matter that make up everything in the universe. They possess various properties that define their behavior and interactions. Two fundamental properties of particles are mass and charge.

1. Mass
Mass is a fundamental property of particles that measures the amount of matter contained within an object. It is a scalar quantity and is expressed in units such as kilograms (kg) or grams (g). The mass of a particle determines its inertia, which is the resistance of an object to changes in its motion.

Key Points:
- Mass is an intrinsic property of a particle and remains constant regardless of its location or surroundings.
- It is responsible for the gravitational force between particles.
- Particles with larger masses experience greater gravitational forces and have more inertia.
- The mass of a particle can be determined by measuring its gravitational interaction with other objects or by its acceleration under a known force (using Newton's second law).

2. Charge
Charge is another essential property of particles that describes their electrical nature. It can be positive, negative, or neutral. Charged particles interact with electromagnetic fields and can experience attractive or repulsive forces. Charge is quantized, meaning it exists only in discrete amounts, represented by elementary charges.

Key Points:
- Charged particles can be categorized as either elementary particles (such as electrons and protons) or composite particles (such as atoms and molecules).
- The unit of charge is the coulomb (C), and the charge of an electron is -1.6 x 10^-19 C, while that of a proton is +1.6 x 10^-19 C.
- Like charges repel each other, while opposite charges attract.
- The behavior of charged particles is governed by electromagnetic forces, which play a crucial role in various phenomena such as electricity, magnetism, and chemical reactions.
- Charge can be created or destroyed but only in pairs of equal magnitude and opposite sign (conservation of charge).

In conclusion, particles possess several properties that characterize their nature and behavior. Mass determines the inertia and gravitational interactions, while charge determines the electrical interactions. Both properties play significant roles in understanding the fundamental forces and phenomena of the universe.

They r light...they can be dispersed