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9 Atomic Structure & Radioactivity - Coggle Diagram
9 Atomic Structure
& Radioactivity
Atomic structure
Subatomic particles
Protons
Neutrons
Electrons
Charge
Depends on protons (+) and electrons (-)
An atom with charge is called an ion
Elements
Determined by number of protons
Found on the periodic table
Stability
Determined by ratio of protons and neutrons
Unstable atoms are called radioisotopes and undergo radioactive decay
Representing atomic structure
Words
Bohr model
Standard notation
Mass
Determined by number of protons and neutron
Isotopes
Different versions of the same element. Have different numbers of neutrons
Radioactivity
Radioisotopes
Unstable isotopes
Undergo alpha, beta or gamma decay to become stable
Release radiation that can be harmful
Radiation can be used for various medical purposes
Different types of radiation have different properties relating to penetration power and speed