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Worksheets7.1.d protons v neutron graph, half life
Total questions: 11
Worksheet time: 7mins
Which statements can be said about this graph of number of neutrons against number of protons
there are usually more neutrons than protons
there are usually more protons than neutrons
beta emitters lie above the stability line
beta emitters lie below the stability line
some elements have the same number of protons as neutrons
In gamma emission how are do A and Z change?
A remains the same
Z increases by 1
X changes to another letter (element)
A decreases by 4
Z reduces by 4
In beta decay how are do A and Z change to make the product?
A remains the same
Z increases by 1
X changes to another letter (element)
A decreases by 4
Z reduces by 4
What is the half life of this isotope?
2 mins
4 mins
6 mins
8 mins
50 mins
What is the half life of this isotope?
2 hours
4 hours
6 hours
8 hours
10 hours
How long will it take for the count to go down to 250 counts per minute?
32 days
40 days
48 days
56 days
24 days
What will be the radioactive count after 28 days?
2000
1500
1000
750
500
With a beta emitter (turquoise region), how does the element move on this graph after beta emission?
down
up
to right
to left
stays where it is
With a alpha emitter (yellow region), how does the element move on this graph after alpha emission?
down
up
to right
to left
stays where it is
With a gamma emitter, how does the element move on this graph.
down
up
to right
to left
stays where it is
Which of the following statements describe half life.
The time taken for the radioactive count to halve.
The time taken for the number of radioactive nuclei to halve
The time taken for the mass of a sample of substance which includes radioactive material to halve.
Half the time for all the radioactive material to decay.
