Anything that has mass and takes up space.
Matter
Small particle that is a building block of matter.
Atom
Particles in the nucleus of the atom.
Proton and neutron
Particle negatively charged moving around the nucleus of an atom.
Electron
Matter with a composition that is always the same, with a unique identity.
Substance
Substance that consists of just one type of atoms.
Element
Name of the total number of protons in an atom.
Atomic number.
What makes different each type of atoms?
The atomic number
Type of substance containing atoms of two or more different elements chemically bonded together.
Compound
Combinations of symbols and numbers that represent a compound.
Chemical formula
Number of atoms of Carbon in CH3COOH
2
Combination of two or more substances that are physically blended together and that can vary in composition.
Mixture.
Mixture in which the individual substances are not evenly mixed.
Heterogeneous mixture
Mixture in which the individual substances are evenly mixed.
Homogeneous mixture.
To form a solution by mixing evenly the components.
Dissolve
Synonym of solution
Homogeneous mixture.
