12 questions
The term given to unstable radioactive atoms.
Parent
Daughter
Half Life
Igneous
The % of the parent isotope remaining after 3 Half Lives.
50%
25%
12.5%
6.25%
The % of the parent isotope remaining after 1 Half Life.
50%
25%
12.5%
6.25%
The % of the parent isotope remaining after 2 Half Lives.
50%
25%
12.5%
6.25%
After one half life, a sample will begin to have more of the parent isotope than the daughter isotope.
TRUE
FALSE
A sample will lose half of the parent isotope after 1 half life.
TRUE
FALSE
The diagram shows 32 atoms
32 of the Red are the parent isotope
0 of the atoms are daughter isotopes
How many half-lives have occurred?
0
1
2
3
The diagram shows 32 atoms.
16 of the Red are parent isotopes
16 of the Green are daughter isotopes
How many half-lives have occurred?
0
1
2
3
The diagram shows 32 atoms
8 of the Red are parent isotopes
24 of the Green are daughter isotopes
How many half-lives have occurred?
0
1
2
3
What is the Half life of this isotope?
5 seconds
10 seconds
15 seconds
20 seconds
What is the Half Life of this isotope?
3 days
5 days
8 days
10 days
The Half Life of Californium 252 is 5 years.
TRUE
FALSE