Radioactivity 5
Authored by Ayodele Adebayo
Physics
10th - 12th Grade
Used 56+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A nuclide has the symbol above .How many protons are there in one nucleus of this nuclide?
6
8
14
20
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A lithium nucleus contains 3 protons and 4 neutrons.
What is its nuclide notation?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A particular nuclide of chlorine can be represented by the symbol shown.
37Cl
17
How many electrons are there in a neutral atom of this nuclide?
17
20
37
54
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A nuclide is represented by the symbol PQ X.
How many neutrons are in one nucleus of the nuclide?
P
Q
P + Q
P – Q
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which statement about the nuclei of all atoms is correct?
They are very small compared with the size of the atoms.
They always contain the same number of protons as neutrons.
They contain electrons, neutrons and protons.
They have a total charge of zero.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The graph shows how the count rate on a detector due to a radioactive source changes with time.
What is the count rate at 5.0 hours?
960 counts per minute
600 counts per minute
150 counts per minute
0 counts per minute
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The diagram represents a carbon atom.
What is the nucleon number (mass number) for this atom?
6
8
14
20
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