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Atomic Structure - Coggle Diagram
Atomic Structure
Basic Structure
Isotopes
Element with different numbers
Atomic Number
Number of protons
Determines how many electrons the atom has.
Mass Number
Number of protons and neutrons
Neutrons
0 charge
Protons
Positive charge
Electrons
Negative charge
Atomic Models
Alpha Scattering
Proves:
Atom mostly empty space
Nucleus is small and positively charged
Plum Pudding Model
Ball of positive charge with negative charges scattered throughout
Bohr Model
Central nucleus, electrons in energy levels orbiting it.
Nuclear Radiation
Background Radiation
Man-made
Nuclear weapons testing and nuclear accidents
Natural
Rocks and cosmic rays
Energy levels
Arrangements can change with the absorption or emission of EM radiation
Beta
High speed electron
Emitted when a neutron turns into a proton in nucleus
Gamma
Only stopped by a few cm of lead
Very penetrating
EM radiation
Alpha
2 neutrons and 2 protons (same as helium nucleus)