Explain one radioactive isotope

Reference no: EM13223706

Natural K consists of 2 stable isotopes 39K(93.10%) and 41K(6.88%) and one radioactive isotope 40K (0.0118%, t1/2 = 1.27x109 years) .

(a) What will be the activity shown by 21 g of KCI?

(b) How many curies of 40K are present in the 21 g of KCI?

Reference no: EM13223706

Questions Cloud

Discuss the concept of resistance : Discuss the concept of resistance and how employees respond to major change; incorporate information from your own experiences as well as insights you have gained from this module.

How the bi tools used to extract meaningful data : List and describe how the BI (Business Intelligence) tools used to extract meaningful data from a DW (Data Warehouse) are used for competitive advantage.

What amount should be added to the initial endowment : A $200,000 gift has been received by Harvard to support in perpetuity an annual professional ethics lecture series from its earnings. The administration says they should expect to earn 6% for the first 10 years, but being conservative.

How is ebusiness changing the traditional marketplace : How is eBusiness changing the traditional marketplace?

Explain one radioactive isotope : Natural K consists of 2 stable isotopes 39K(93.10%) and 41K(6.88%) and one radioactive isotope 40K (0.0118%, t1/2 = 1.27x109 years).

Use binomial distribution : What are the four properties that must be present in order to use binomial distribution?

Which curve will shift of the per-burger tax and why : Which of the following curves- average fixed cost, average variable cost, average total cost, and marginal cost- would shift as a result of the lump-sum tax Why Show this in a graph. Label the graph as precisely as possible.

Explain the portion of heat energy lost to the calorimeter : Suppose the calorimeter for this experiment had been made of a heat-conducting material (such as metal) rather than plastic foam, so that the portion of heat energy lost to the calorimeter itself was larger and could not be ignored

Use bayes theorem to find the probability : Compare the result in (a) to the probability that a fatality involved a rollover and comment on whether SUVs, Vans, and pickups are generally more prone to rollover accidents that other vehicles.

User Account

All Pages