Skip to content

Course home

Sign up

6.1 Atomic structure and isotopes

EasyMedium
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263
Question 36

The symbol for the nucleus of an atom of caesium-137 is shown.

55137Cs {}_{55}^{137}\text{Cs} 55137​Cs

How many protons are in the nucleus of this atom of caesium-137?

A

55

B

82

C

137

D

192

Markscheme

6.1 Atomic structure and isotopes Questions

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

81 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.

Question bank