alpha radiation (a) helium atom or beta radiation (b) electron or Name Characteristic Particle Emitted Nuclear Formula has mass and size only has energy ----- alpha radiation (a) helium atom or beta radiation (b) electron or gamma radiation (g) neutron proton or H nucleus or

Review What is an isotope? An element with a different #p An element with a different #n An element with a different #e A word

Review What is a radioactive isotope? An isotope that is inactive An isotope that is active An isotope that is unstable An isotope that likes to listen to music and break dance

Review What is radioactive decay? The breaking down of an unstable isotope The breaking down of a stable isotope When an isotope becomes a, b, or g When an isotope goes bad

Review What is radiation? Heat and energy Energy and particles emitted from radioactive decay Particles emitted from an isotope Nuclear bomb!

Review What is the symbol for beta radiation? bb aa ag l b a g 

17 13 4 8 6 2 𝟔 𝟏𝟑 𝐂 𝟑𝟏 𝟕𝟐 𝐆𝐚

transmutation has occurred

Alpha Decay (a) 2p and 2n 4

Alpha Decay (a)

Beta Decay (b) electron p + e

Beta Decay (b)

Gamma Decay (g) energy gamma ray

Gamma Decay (g)

𝟗𝟐 𝟐𝟑𝟖 𝐔 → 𝟗𝟎 𝟐𝟑𝟒 𝐓𝐡 + 𝟐 𝟒 𝐇𝐞 𝟗𝟎 𝟐𝟑𝟒 𝐓𝐡 → 𝟗𝟏 𝟐𝟑𝟒 𝐏𝐚 + −𝟏 𝟎 𝛃 𝟗𝟏 𝟐𝟑𝟒 𝐏𝐚 → 𝟗𝟐 𝟐𝟑𝟒 𝐔 + −𝟏 𝟎 𝛃 𝟗𝟐 𝟐𝟑𝟖 𝐔 → 𝟗𝟐 𝟐𝟑𝟒 𝐔 + 𝟐 𝟒 𝐇𝐞 +𝟐 −𝟏 𝟎 𝛃

a 2+ 4 He b 1- e- g - slowest, heaviest - does not penetrate easily - transmutation - very small mass very small b 1- e- - penetrates some things - transmutation - no mass, fastest g high energy - penetrates the best - no transmutation