« previous next »

Author Question: Name the first three isotopes of hydrogen and their nuclide symbols, and indicate which is most ... (Read 22 times)

Diane

  • Hero Member
  • *****
  • Posts: 576
on: Jul 27, 2018
Name the first three isotopes of hydrogen and their nuclide symbols, and indicate which is most common and which is most unstable.
 
  What will be an ideal response?

Question 2

If a nuclide has a decay constant of 0.765  10-6 s-1 and contains 3.0  1017 nuclei
 
  (a) what is the half life?
  (b) what is its initial activity?
  (c) what is the activity after 12. days?


meltdown117

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 27, 2018
Answer to Question 1

ordinary hydrogen 1H , deuterium 2H , and tritium 3H ; 1H being most common and 3H most unstable decaying with a 12. year half life.

Answer to Question 2

(a) 9.06  105 s
(b) 2.3  1011 decays/s
(c) 1.0  1011 decays/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Atropine was named after the Greek goddess Atropos, the oldest and ugliest of the three sisters known as the Fates, who controlled the destiny of men.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Hydrogen Bonding and the Properties of Water Hydrogen Bonding and the Properties of Water
Common Abbreviations and Symbols Used by Massage Therapists Cont Common Abbreviations and Symbols Used by Massage Therapists Cont
Using radiogenic strontium isotopes in carbonate shells as a proxy for orogeny Using radiogenic strontium isotopes in carbonate shells as a proxy for orogeny
Bright-Line Spectra of Hydrogen and Helium Bright-Line Spectra of Hydrogen and Helium
Isotopes and Radioisotopes Isotopes and Radioisotopes
Common pedigree symbols Common pedigree symbols
Video: Types of energy transfer reactions: oxidation-reduction reactions and ATP generation reactions

For a complete list of videos, visit our video library