Flashcards in Chapter 25 And 6 Deck (6):
Distinguish between the 3 main types of Ionized energy
Alpha radiation- helium nucleus and a +2 charge. This is easily blocked by skin and clothing. Mass= 4
Beta radiation- high energy (fast moving) electrons and a -1 charge. It can go through paper and skin. Mass= 1/1837
Gamma radiation- very high energy Photon, no mass and no charge. Mass=0
Define half life
The time required for 1/2 the number of original radioactive nuclei to disintegrate. To find, see pink tab thing
Know simple half life calculations
Complete and balance nuclear equations
The sum of the mass number must be on both sides of the arrow.
The sum of the atomic number must be on both sides of the arrow.
Atomic number = number on the table
The conversion of an atom of one element into an atom of another element