1. You start with 64g of a radioactive material (“Parent”) with a half-life of 16 days. How much of the Parent will you have after 32 days?

Hey there!

A half-life means after a certain amount of time, half of that substance will be gone/changed after that time.

32 days is two half lives because 32 ÷ 16 = 2.

So, we divide the 64g sample in half 2 times.

64 ÷ 2 = 32

32 ÷ 2 = 16

There will be 16g of the radioactive material remaining after 32 days.

Hope this helps!

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i