Chapter 2 - Part 1 - Basic Chemistry
Atoms: Building blocks of elements, and atoms of different elements differ from one
another
Subatomic Particles:
Nucleus
Protons (p+)
Neutrons (n0)
And the Electron (e-) which is orbiting the nucleus
The number of protons equals the number of electrons in an atom, making it electrically
neutral
Ions are atoms that have lost or gained an electron
1
, Molecule: Two or more atoms of the same element combined chemically
Compound: Two or more atoms of different elements combined chemically to form a
molecule of a compound
2
Atoms: Building blocks of elements, and atoms of different elements differ from one
another
Subatomic Particles:
Nucleus
Protons (p+)
Neutrons (n0)
And the Electron (e-) which is orbiting the nucleus
The number of protons equals the number of electrons in an atom, making it electrically
neutral
Ions are atoms that have lost or gained an electron
1
, Molecule: Two or more atoms of the same element combined chemically
Compound: Two or more atoms of different elements combined chemically to form a
molecule of a compound
2
