Among the following radioactive parent isotopes, which has the shortest half-life? A) uranium-238 ...

Author Question: Among the following radioactive parent isotopes, which has the shortest half-life? A) uranium-238 ... (Read 170 times)

londonang

Hero Member
Posts: 540

on: Jul 14, 2018

Among the following radioactive parent isotopes, which has the shortest half-life?

A) uranium-238
B) potassium-40
C) rubidium-87
D) carbon-14

Question 2

The longest subdivision of the geologic time scale is the ________.

A) epoch
B) eon
C) era
D) period

Swizqar

Sr. Member
Posts: 357

Reply #1 on: Jul 14, 2018

Answer to Question 1

Answer: D

Answer to Question 2

Answer: B

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