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Atomic Structure

Q9.

(a) A stable atom contains 28 nucleons.

Write down a possible number of protons, neutrons and electrons contained in the atom.

(2 marks)

(b) An unstable isotope of uranium may split into a caesium nucleus, a rubidium nucleus and four neutrons in the following process.

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(i) Explain what is meant by isotopes.

(ii) How many neutrons are there in the z nucleus?

(iii) Calculate the charge to mass ratio, in C kg–1, for thez nucleus.

 

(iv) Determine the value of X for the rubidium nucleus.

(6 marks)
(Total 8 marks)