1.1 Everything is made of particles Flashcards
1
Q
What is Brownian Motion?
A
A random movement of microscopical particles suspended in liquids or gases resulting from the impact of molecules of the fluid surrounding the particles.
2
Q
What is diffusion?
A
The particles mix and spread by colliding with other moving particles, and bouncing off in all directions. This mixing process is called diffusion.
3
Q
What are atoms?
A
The smallest particles that we cannot break down in chemical reactions are called atoms.
4
Q
What are elements?
A
A substance with the same kind of atom.
5
Q
What are molecules?
A
Molecules are particles made of two or more atoms joined together.
6
Q
What are ions?
A
Atoms that carry a charge.
