Practice The Nucleus (3) - Atoms and Nuclei

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9 questions

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Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the atomic number of an element?
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Think about what defines an element.
Question 2.
What particles make up the nucleus?
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Remember the collective term we use for these particles.
3Question 3.
What is the relationship between mass number and the nucleus?
- It is the number of protons only
- It is protons plus neutrons
- It has no relationship
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Consider what contributes to the mass of the nucleus.
4Question 4.
True or False: The atomic number is the same as the mass number.
- True
- False
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Check the definitions of both terms.
Question 5.
Given a nucleus with 20 protons and 22 neutrons, calculate its mass number and discuss its stability compared to other elements with varying neutron counts.
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Analyze the stability trend of elements around it in the periodic table.
Question 6.
If the binding energy of a nucleus is found to be less than that of another, discuss the implications regarding its stability and potential for radioactive decay.
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Compare the nucleus's binding energies and relate them to their respective isotopic forms.

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