• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Radioactive Decay Lab

Extracts from this document...


Introduction There are many atomic nuclei which are unstable and so they radiate different emissions. The process by which they decay is called radioactive decay. When there is an abundance of neutrons or protons in the nuclei, then the nuclei will wither emit an alpha particle, a beta particle, or a gamma particle. An alpha particle is a helium nucleus, a beta particle is an electron, and a gamma particle is an electromagnetic wave (Physics 30). ...read more.


A substance with a long half life will decay slowly, while a substance with a short half life will decay rapidly. (Kirk) Every element has its own decay constant ( which is used to find the number of given radioactive particles after a certain time period. The formula used to find the number of particles which are undergoing radioactive decay after a certain time is: where is the initial number of particles, is the decay constant, and t is the time elapsed. ...read more.


15.5 14.8 12000 8.5 15.5 12.0 13000 5.5 13.5 9.5 14000 3.5 10.5 7.0 15000 3.5 8.0 5.8 Data Processing Calculations Calculating Half Life # of Molecules Time (s) 40 5200 20 9000 # of Molecules Time (s) 80 1600 40 5200 Average Half Life=time needed for # of molecules to half Half Life 1-3800s Half Life 2-3600s Therefore average half life= Calculating Decay Constant LOBF Therefore Transformed Graph Therefore, the slope represents which is the decay constant, and the intercept is the , which is the initial number of particles. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our International Baccalaureate Physics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related International Baccalaureate Physics essays

  1. Investigating radioactive decay using coins

    First of all, the drop height must be kept the same in all experiments and this can be done by using a rule to measure the height each time. Also the type of coins and the surface which the coins hit must be kept the same.

  2. Telescopes - science research project.

    The next generation telescopes will possess various scientific instruments. It will also be likely to shift from one tool to another within some minutes. The vault and telescope will be capable to alter locations on the sky and to begin a new reflection within a small duration.

  1. Physics Wave revision question

    I B. II C. III D. IV (1) 18. Diagram 1 below shows the displacement of part of a medium through which a wave is travelling at time t = 0. Diagram 2 shows the displacement at a later time t = 4.0 s in which the wave has moved forward 10 cm.

  2. Investigating electromagnetic induction

    2.95 Mean ( ) 3.1 Mean ( ) 2 Table.3 current induced in 600 turns from 10 cm North South Current ?I �0.5 mA push in (+) Current I (mA) ?I �0.5 mA pull out (-) Current (mA) ?I �0.5 mA push in (-) Current (mA) ?I �0.5 mA pull out (+)

  1. Exponential Decay of beer foam Design Lab

    Diagram: Variables: Variable Type Variable(s) Method of Measuring Independent The time taken for the beer to foam and settle. The time will be measured in seconds using a timer, to give the foam time to form and build up.

  2. The Half-life of dice Decay investigation

    Numerical error = No. of dice remaining X %error For the 1st shuffle: 84 x 10% = 8% (round up to the nearest integer since the number of dice must be an integral value) Based on the table above, the number of dice remaining is plotted against the number of

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work