www.radpro**calculator**.com/**Decay**.aspx

Radioactive Decay Useful for calculating today's activity for any radioactive isotope. You may also back decay sources to find out the original activity (or for any date), knowing the current activity. If the isotope that you wish to decay is not on the drop down list, check the 'not listed' check-box and manually enter the isotope name and its ...

www.shodor.org/UNChem/advanced/nuc/nuccalc.html

Use this calculator to investigate how a unstable substance decays over time. The first two equations are found in the Nuclear Chemistry section.. From the above two equations, we derive the following, which we use as the mathematical basis for calculating decay.

www.giga**calculator**.com/**calculators**/half-life-**calculator**.php

Half-Life Calculator. Use this decay calculator to easily calculate the time elapsed since the beginning of the decay, or calculate the original quantity, half-life or remaining quantity of a substance subject to radioactive decay, based on any of the three parameters.

**www.easycalculation.com**/chemistry/**nuclear**-**decay**.php

Radioactive Decay Calculator. The radioactive or nuclear decay takes place, when an unstable atom loses its energy by emitting radiation like alpha, beta, and other particles. These radiations can enter into human skin and damage cells, hence they are dangerous.

www.hse2.ubc.ca/rad/Calc/calcframe.htm

Radioactive Decay Calculator ... Decay time (t) UBC Disposal Limits * Solid (kBq/kg) ** Liquid (kBq/l) *** Gaseous (kBq/m) * - Only the first 9 isotope have UBC disposal limits. Refer to your licence or contact your radiation safety office for the disposal limits of other isotopes.

**www.easycalculation.com**/formulas/**nuclear-decay**.html

The radioactive materials contain unstable nuclei and undergo radioactive decay. The nuclear decay formula is calculated by multiplying 1000 with initial number of moles, exponent value of element and time period is divided by 1000. The nuclear decay equation is an efficient way to find the number of moles remaining in the nuclei.

**www.1728.org**/**decay**exp.htm

Radioactive Decay Calculator, exponential decay, half-life. I N S T R U C T I O N S. This is the FORMATTED DISPLAY, which shows numbers in scientific notation in 6 significant figures.

hps.org/hpspublications/**decay**.cfm

Decay Calculator. This Web application will allow you to calculate the activity of a radionuclide after a specified interval of time. The list of radionuclides excludes those with half lives measured in seconds.

www.**rad**pro**calculator**.com

Rad Pro Calculator online performs many nuclear calculations that are useful to the health physicist, radiological researcher, radiochemist, radiation safety officer, health physics technician (HP) and other professionals in radiation physics and radiological engineering.

**www.calculator.net**/**half-life**-**calculator**.html

This free half-life calculator can determine any of the values in the half-life formula given three of the four values. The calculator can also convert between half-life, mean lifetime, and decay constant given any one of the three values. Learn more about how the half-life formula is used, or explore hundreds of other math, finance, fitness, and health calculators.