TO ALL CHEMISTS .. Help me with these multiple choice and get 5 stars...?

1. The point at which carbon-14 will no longer be taken up by a living organism is


a. death


b. decomposition


c. illness


d. death





2. The study of charged radioactive decay particles that pass through a mineral's lattice structure is called:


a. isotopic mapping


b. atomic clock dating


c. fission track dating


d. radiometric dating





3. The only sub-atomic particle to be excluded from calculations of the mass of an atom is the


a. positron


b. proton


c. electron


d. neutron





4. Rutherford and Boltwood first used the principles of radioactive decay to date a rock using uranium, which decayed to


a. plutonium


b. lead


c. helium


d. thorium

TO ALL CHEMISTS .. Help me with these multiple choice and get 5 stars...?
1. A and D are both death and both correct.





2. D





3.A





4. D
Reply:q 3 is a.....

wisteria