Multiple Choice
The half-life of carbon 14 is 5730 years. If a 1-gram sample of old carbon is 1/8 as radioactive as 1-gram of a current sample, then the age of the old sample is about
A) 716 years.
B) 11,500 years.
C) 17,200 years.
D) 22,900 years.
E) 46,000 years.
Correct Answer:
Verified
Correct Answer:
Verified
Q33: The radioactive half-life of a material is
Q34: Which experiences the least electrical force in
Q35: A Geiger counter placed 1 meter from
Q36: Which of the following isotopes is radioactive?<br>A)Carbon-12<br>B)Carbon-14<br>C)both
Q37: What must you do to get away
Q39: When radium (A = 88)emits an alpha
Q40: Some charged particles in a bubble chamber
Q41: In a smoke detector americium (A =
Q42: When the nucleus of an atom emits
Q43: Which wavelengths are shortest?<br>A)light ray<br>B)X-ray<br>C)gamma ray