its 125
125
100
2.09
A sample of carbonate is acid. Acid is what identifies carbonate in science studies.
5.0 mg is the total mass of 222Rn remaining in an original 160-milligram sample of 222Rn after 19.1 days.
125
100
its 100
8.1 days is, if half-life is 2.7 days, 3 half-lives. 12.5%, or 12.5 g, of 79198Au would remain after three half-lives.
halflife
A sample of 187 rhenium decays to 187-omium with halflife of 41.6 billion years. If all 188 osmium are normalized isotopes.
This bone had nerve running through it.
The Bone was located near the brain
This bone was near blood vessels or organs.
2.09
A sample of carbonate is acid. Acid is what identifies carbonate in science studies.
The length of time required for half of a sample of radioactive material to decay