Which type of rock is the easiest to date radiometrically?
A) sedimentary
B) all three types of rock are equally easy to date
C) metamorphic
D) igneous
Correct Answer:
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Q39: In radioactive decay, the original nucleus before
Q40: In beta decay,
A) a neutron turns into
Q41: In which type of radioactive decay does
Q42: If originally there were X atoms of
Q43: The radioactive isotope ¹³¹I (atomic number 53)
Q45: A radioactive isotope with an atomic number
Q46: The radioactive isotope ²²⁶Ra (atomic number 88)
Q47: If originally there were X atoms of
Q48: A rock sample contains 1/8 micrograms of
Q49: Radioactive decay is
A) deterministic
B) relativistic
C) atomistic
D) probabilistic
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