10 minutes. APEX ^-^
10 grams, because its half life will be decreased by half two times. 10 grams.
After first 5 days you have 5 grams. then next 5 days 2.5 grams, then next 5 days 1.25 g, then last 5 days 0.625 g.
If the isotope nitrogen 13 has a half life of 10 when starting with 40 grams you will have 10 grams left after 20 minutes. There are 10 minutes and 30 second in half a minute.
The sample will have 12,5 grams.
1.5grams
10
9 years
16 hours.
How long it takes for half of a sample to decay to another form.
The length of time required for half of a sample of radioactive material to decay
125
9 years
20
16 hours.
1
16 hours.
18 days
4.8 minutes
16 hours.
20 years (APEX)
The half-life is 16 hours.
Please explain "sampke".
The rate of decay for a radioactive sample