Skip to content

Course home

2.1 Atomic structure

2.1 Atomic structure

EasyMediumHard
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576
Question 30

In nuclear physics and chemistry, a specific nuclide of an element is represented using the notation ZAX^{A}_{Z}\text{X}ZA​X, where AAA is the mass number and ZZZ is the atomic (proton) number.

Draw one straight line from each mathematical expression to the correct description of the subatomic particles it represents in a neutral atom.

Expressions:

  • ZZZ
  • A−ZA - ZA−Z

Descriptions:

  • The total number of protons and electrons in the atom
  • The number of protons in the nucleus of the atom
  • The number of neutrons in the nucleus of the atom
  • The total number of protons, neutrons, and electrons in the atom
  • The total number of nucleons in the nucleus of the atom
[2]
Markscheme

2.1 Atomic structure Questions

  1. GCSE
  2. /Chemistry
  3. /2.1 Atomic structure

87 exam-style questions on Edexcel GCSE Chemistry 2.1 Atomic structure, covering 2.1.1 Development of the atomic model, 2.1.2 Structure of the atom and subatomic particles, 2.1.3 Mass number, isotopes and relative atomic mass, and 2.1.4 Calculating relative atomic mass from isotopic abundance. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank