- #1

- 21

- 0

The half life of one radioactive isotope of sodium is 2.6 years. Show that its decay constant is 8.4 x 10^-9 s^-1.

Thanks in advance,

Ben.

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter benhorris
- Start date

- #1

- 21

- 0

The half life of one radioactive isotope of sodium is 2.6 years. Show that its decay constant is 8.4 x 10^-9 s^-1.

Thanks in advance,

Ben.

- #2

- 145

- 0

[tex] T_h = \frac {ln2} { \lambda} [/tex]

But remember to convert the time into seconds!

But remember to convert the time into seconds!

Last edited:

- #3

- 128

- 0

- #4

- 21

- 0

Ah got it,

Thanks guys.

Was a simple error, i converted it to seconds by doing =

2.6 x 365 x 3600. And i forgot about the hours.

3600 x 24 x 365 x 2.6 = no.seconds gave the correct answer.

Silly mistake.

Thanks guys.

Was a simple error, i converted it to seconds by doing =

2.6 x 365 x 3600. And i forgot about the hours.

3600 x 24 x 365 x 2.6 = no.seconds gave the correct answer.

Silly mistake.

Last edited:

Share: