kelseyyraee kelseyyraee

01-11-2016
Chemistry

contestada

How many milligrams remain of a 15.0 mg sample of radium-226 after 6396 years? The half life of radium-226 is 1599 years.

Respuesta :

kaity0001 kaity0001

01-11-2016

There are 4 half lives of radium-226 in 6396 years. 15.0 divided by half 4 times (15.0/2= 7.5, 7.5/2 = 3.75, 3.75/2 = 1.875) equals 1.875 mg of radium-226.

Answer Link

Otras preguntas

Which is the most reasonable estimation for the weight of a kitten?

a dog runs 27 m in 3 s. what is the dogs average speed. a 9 m/s b 24 m/s c 30 m/s d 81 m/s

How do the cells in your body get energy

The price of a pair of shoes is $63.20. The sales tax rate is 4.5 percent. How much sales tax would you pay if you bought these shoes? A.) $2.84 B.) $3.16 C.) $

What are the three main features of a pantomime?

Two equivalent ratios to 12 over 60

how do i add a photo here? btw im using a computer

which of the following is NOT one of the functions of a colon?

please help me find a good concluding sentence and if you can please edit it?

I need help is it A B C or D