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A-Level Edexcel Chemistry Atomic Structure

Review A-Level Edexcel Chemistry atomic structure through subatomic-particle statements about proton, electron and neutron properties.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • identify correct subatomic-particle statements about charge, mass and neutral atoms

2.1—The structure of an atom in terms of electrons, protons and neutrons question 1

[Maximum number: 1]

Which statement about subatomic particles is correct?

A

neutral atoms always contain the same number of protons and electrons

B

neutral atoms always contain the same number of protons and neutrons

C

electrons have a relative mass of 1 and a charge of -1

D

protons have a relative mass of 1 and no charge

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