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6.1 Atomic structure and isotopes

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Question 18

A neutral atom of a radioactive isotope of fermium is represented by the symbol:

{}_{100}^{257}\text{Fm}

A different radioactive isotope of fermium is ionised to form a $Fm2+\text{Fm}^{2+}$ ion. Which of the following correctly identifies the nuclear symbol of this different isotope and the number of electrons orbiting its nucleus?

Nuclear symbol:

{}_{100}^{255}\text{Fm}

, number of electrons: $98$

Nuclear symbol:

{}_{100}^{255}\text{Fm}

, number of electrons: $102$

Nuclear symbol:

{}_{98}^{257}\text{Fm}

, number of electrons: $98$

Nuclear symbol:

{}_{100}^{257}\text{Fm}

, number of electrons: $98$

Markscheme

6.1 Atomic structure and isotopes Questions

GCSE
Physics
6.1 Atomic structure and isotopes

81 exam-style questions on Edexcel GCSE Physics 6.1 Atomic structure and isotopes. Each one has a worked solution and a mark scheme showing where the marks go.

6.1 Atomic structure and isotopes

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6.1 Atomic structure and isotopes

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Question 18

A neutral atom of a radioactive isotope of fermium is represented by the symbol:

{}_{100}^{257}\text{Fm}

Nuclear symbol:

{}_{100}^{255}\text{Fm}

, number of electrons: $98$

Nuclear symbol:

{}_{100}^{255}\text{Fm}

, number of electrons: $102$

Nuclear symbol:

{}_{98}^{257}\text{Fm}

, number of electrons: $98$

Nuclear symbol:

{}_{100}^{257}\text{Fm}

, number of electrons: $98$

Markscheme

6.1 Atomic structure and isotopes Questions

GCSE
Physics
6.1 Atomic structure and isotopes

81 exam-style questions on Edexcel GCSE Physics 6.1 Atomic structure and isotopes. Each one has a worked solution and a mark scheme showing where the marks go.