Whats A half life in Radiation terms?

Answer 1

It is the time it takes for half of the radioactive material to decay, releasing radiation as it does so. This is exactly why nuclear reactors are so dangerous, it is not so much the risk of explosion but that the radioactive by-products are dumped or buried, continually releasing dangerous radiation.

Answer 2

The half life is the period of time required for 1/2 of a sample of a radioactive element to decay. Half-lives range from fractions of a second to millions of years for different radioactive isotopes.

Answer 3

Suppose you had 20 ducks.
If foxes eat half of them in a month, you would have 10 at the end of the first month, 5 after 2 months etc.

Now, if they were radioactive, you could see them in the dark, possibly.

Answer 4

The time it takes for half the number of radioactive nuclei in a given sample to decay into daughter nuclei.

Answer 5

Half life- the time it takes for a radioactive parent nucleus (isotope) to decay to half of its original amount.

this means that the halflife is always the same.
if an isotope has a halflife of 4.5 billion years, this means that after this amount of time there will be only half (50%)of the radioactive parent material present in it.

after another halflife, there will be 25%
........................12.5%.....

Answer 6

Exponentially, the radical inversion of the product ( lamda based ), is very much in line with topographical formulae. Using a calculus differential to explain this would be easier but it may be better to simply start with 20 ducks. And if they lay eggs that glow in the dark, you know you've cracked it!