What is the structure of an atom?

Atoms are really tiny particles that make up all substances in the universe. An element is made of one type of atom. An atom has a small central nucleus made up of smaller sub-atomic particles called protons and neutrons. The nucleus is surrounded by even smaller sub-atomic particles called electrons. Atoms always have the same number of protons and electrons. Protons are positive (think - they both begin with the letter P!), electrons are negative and Neutrons are Neutral (Think - they both begin with the letter N!). Protons and electrons have an electrical charge. Both have the same size of electrical charge and because they are equal in number the overall charge of an atoms is zero.

ET
Answered by Emma T. Chemistry tutor

2807 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

Describe how elements of the periodic table are arranged relating to their atomic structure. (6 marks)


Potassium forms an ionic compound with sulfur. Describe what happens when two atoms of potassium reaction with one atom of sulfur (5 marks)


What is the volume of a gas in a closed system working under ideal conditions at r.t.p of 1.5 moles of gas?


i) Write down the Equation for the Haber-Bosch process. Stating clearly the catalyst used. ii) Explain why high pressures are used for this reaction in industry iii) Explain the importance of the catalyst


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