physics

Lithium Atom Model

Isotopes

Same # of e- & p+ different# n* change in mass #

Unstable Atom Highly Reactivie

Mass # p+& n*Atomic # p+

Radioactive Decay: Nucleus of an unstable atom...

losing energyby emitting radiation particles.

Alpha Decay nucleus of an atom splits into two parts losing 2 p+ & 2 n*

Beta Decay n* changes into p+, e- & n* released, atomic # up by 1 mass # same

Half Life: time it takes for half of the atoms to disintegrate

Fission vs. Fusion