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6.1 Atomic structure and isotopes

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Question 35

In a computer simulation, two identical particles are added to a neutral atom. Each particle is either a proton or an electron.

After the particles are added, the relative mass of the atom has increased by 21840\displaystyle \frac{2}{1840}18402​.

Which gives the particles added and the relative charge of the atom afterwards?

[1]
A

Two protons; relative charge +2+2+2

B

Two protons; relative charge −2-2−2

C

Two electrons; relative charge −2-2−2

D

Two electrons; relative charge +2+2+2

Markscheme

6.1 Atomic structure and isotopes Questions

  1. GCSE
  2. /Physics
  3. /6.1 Atomic structure and isotopes

103 exam-style questions on Edexcel GCSE Physics 6.1 Atomic structure and isotopes, covering 6.1.1 Structure of the atom, 6.1.2 Isotopes: atomic and mass number, 6.1.3 Sub-atomic particles: masses and charges, and 6.1.4 Electron orbits and energy changes. Each one has a worked solution and a mark scheme showing where the marks go.

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