P4 - Atomic Structure Flashcards
1
Q
Who made the plum pudding model of the atom
A
JJ Thompson
2
Q
Activity
A
Rate of decay
Decays per second
3
Q
Units of power
A
Watts (W)
4
Q
Why is radioactive decay described as random
A
It cannot be predicted when a nucleus will decay
5
Q
Irradiation
A
When an object is exposed to ionising radiation
