Aradioactive element has a half-life of six days. what is the approximate decay rate of the element after the first day? 0.9% 1.5% 8.3% 10.9%

10.9%

Step-by-step explanation:

Formula of Half life :

Now we are given half life = 6 years

So,  

where  = initial amt.  

 = remained after t time  

= half life period  

So  

So, decayed amount = 1- 0.89 = 0.109  

So , decay rate of the element after the first day =

                                                                                 =

Hence the approximate decay rate of the element after the first day is 10.9%

b

step-by-step explanation:

i dont know