Topic 7 - Half-life Flashcards
1
Q
what is half-life?
A
half-life is the time taken for half of the radioactive atoms present to decay
2
Q
what does a short half-life mean?
A
nuclei decay quickly
3
Q
what does a long half-life mean?
A
nuclei decay slowly
4
Q
how do you find half-life on a graph?
A
draw a line from the halfway point on the y-axis
