Radium-226, a common isotope of radium, has a half-life of 1,620 years. how many grams of a 120-gram sample will remain after t years? which equation can you use to solve this problem?

Step-by-step explanation:

We have been given that Radium-226, a common isotope of radium, has a half-life of 1,620 years.

We will use half life formula to solve our given problem.  

, where,  

,

,

.

As we are told that the sample has 120 grams, this means that a equals 120. Upon substituting our given values in half life formula we will get,

Therefore, the equation represents the remaining amount of Radium-226 after t years.

The equation represents the remaining amount of Radium-226 after t years.

Given:

The half-life of a common isotope of radium (Radium-226) = 1,620 years

Initial value (a) = 120 gram

We will use the half-life formula to solve our given problem.

Where,

a = Initial value

h = Half life

t = Time

So,

Therefore, the equation represents the remaining amount of Radium-226 after t years.

For more information:

link

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)

think about it deeply and passionately about this property

i am sorry