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Question 10

A piece of radioactive element has initially 8.0 x 1023 atoms. Half life is two days. After 16 days, the number of atoms is

  • A.5 x 1021
  • B.5 x 1023
  • C.2 x 1022
  • D.2 x 1021
Objective

Question details

Exam body
UNN
Subject
Chemistry
Year
2008/2009
Question no.
#10
Type
Objective
Previous · Q9Hydration of ions in addition is associated with Next · Q11 Which of the following pairs of substances are hygroscopic?

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