Sharp EL-5230 Manual De Usuario

DECAY  :NORMAL
ORIGINAL MASS
Mº=?            

T=
   5719.980034
YEARS            

T=-(ln(M≥©M≠))©

; T ; = S ( i

1.2118œ-4

( @ v 1 z @
v 0 ) ) z 1.2118
` S 4 e

Print T

i 0 ; T e

Print”YEARS

i 1 @ a YEARS ;
e

End

i 5 e

• The half-life of a radioactive isotope is the time required for half of its

mass to decay.

Press j to return to the PROG mode menu.

Press 0, select the program
‘DECAY’ and press e.

Enter 100 for M

0

 and 50 for M

1

.

The half-life of 

14

C is 5719.980034 years.