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5.1 The nuclear model of the atom

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Question 105

An isotope of helium has the nuclide notation 23He^3_2\text{He}23​He.

How many neutrons are in the nucleus of this isotope and what is the relative charge on the nucleus?

A

Number of neutrons: 111, relative charge: +2+2+2

B

Number of neutrons: 111, relative charge: +3+3+3

C

Number of neutrons: 222, relative charge: +2+2+2

D

Number of neutrons: 222, relative charge: +3+3+3

Markscheme

5.1 The nuclear model of the atom Questions

  1. IGCSE
  2. /Physics
  3. /5.1 The nuclear model of the atom

284 exam-style questions on CIE IGCSE Physics 5.1 The nuclear model of the atom, covering 5.1.1a Structure of the atom and ions, 5.1.1b Alpha-particle scattering, 5.1.2a Composition of the nucleus and isotopes, 5.1.2b Proton number, nucleon number and nuclide notation, and 5.1.2c Nuclear fission and nuclear fusion. Each one has a worked solution and a mark scheme showing where the marks go.

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