CAIE IGCSE Physics 5.1.2.3 Terms Proton Number Atomic Number Z Questions

Use CAIE IGCSE Physics nuclide data to distinguish proton and nucleon numbers, calculate neutron counts and compare the composition of specified atoms or nuclei.

Exam points

Identify Z as the number of protons and A as the total number of protons and neutrons in a nucleus.
Calculate neutron number as A minus Z from the stated nuclear numbers or nuclide symbol, including alpha-particle nuclei.
Compare nuclear compositions by working out proton and neutron counts, including nuclei with equal nucleon numbers or different hydrogen nucleon numbers.

[Maximum number: 2]

The isotope uranium-235 is represented by

{ }_{92}^{235} \cup .

State what the numbers 92 and 235 represent in this symbol.

92 is

235 is

All question bank results loaded

CAIE IGCSE Physics 5.1.2.3 Terms Proton Number Atomic Number Z Questions question 1