WorksheetsChm 1.1.4 Review
Total questions: 5
Worksheet time: 3mins
Name
Class
Date
1.
How much of a 200g sample would remain after 18 hours if the half life was every 6 hours?
a)
100g
b)
50g
c)
25g
d)
12.5g
2.
How much time would pass to have a 360g sample decay down to a 45g if the half life was 20 minutes?
a)
120 minutes
b)
240 minutes
c)
40 minutes
d)
60 minutes
3.
What is the half life of a sample if only 1.25g of a 10g sample remained after 12 hours?
a)
1 hour
b)
10 hours
c)
3 hours
d)
4 hours
4.
If 238U experienced alpha decay, what would be the new element?
a)
234Th
b)
242Th
c)
234Pu
d)
242Pu
5.
If 56Fe experience beta decay, what would be the new element
a)
56Co
b)
52Cr
c)
60Ni
d)
56Mn
100 %
