Describe the model now used for the structure of an atom. Refer to the constituent particles including their relative masses and charges.

In an atom, the mass is concentrated in the nucleus which is at the centre of the atom. The nucleus is composed of neutrons and protons, each with a relative mass of 1. By comparison, the third component of an atom is the electrons which orbit the nucleus and have a relatively neglible mass.The charge of the atom is defined by the total charge of its components. Electrons have a charge of -1, protons of +1 and neutrons have no charge.

LC
Answered by Lewis C. Physics tutor

18778 Views

See similar Physics GCSE tutors

Related Physics GCSE answers

All answers ▸

State Newton's 1st Law:


The lamp has an efficiency of 20%. Explain what this means.


Explain how an electromagnetic motor works?


Describe one method by which the distance to stars from Earth is measured, and one modern improvement to this method which increases its accuracy.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences