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Structure of the atom (Particles inside atoms (Proton: Found in nucleus…
Structure of the atom
Particles inside atoms
Subatomic particles: Tiny particles inside an atom
Proton: Found in nucleus
Positive charge
Neutron:Found in nucleus
No charge
Electron: Found outside the nucleus
Negative Charge
Atomic structure of the first twenty elements
Niels Bohr
Proposed that electrons orbit the nucleus
All atoms are neutral
Won a nobel piece prize in 1922
Atomic number
Number of protons found in the nucleus of an atom
Mass number
Sum of protons and neutrons
The Atom
Atoms are the smallest particle of an element that still has the properties of that element.
John Dalton
English scientist who theorized atoms in 1808.