An element is a matter that can exist either as atoms (e.g. argon) or as molecules (e.g., nitrogen). Elements cannot be broken down into a simpler type of matter by either physical or chemical means,… Read More »Elements, Compounds and Mixtures
The atomic structure tells us that every atom is composed of a nucleus and one or more electrons bound to the nucleus. The nucleus is made of one or more protons and neutrons. Although the… Read More »Atomic Structure
You can find learning notes, mind maps and curiosity videos associated with each topic for your N Level Chemistry exam. 1. Syllabus Reference: https://www.seab.gov.sg/docs/default-source/national-examinations/syllabus/nlevel/2023syllabus/5105_y23_sy.pdf 2. N Level Exam Format Physics-Chemistry Combo Topic 2.1 (a) Kinetic… Read More »Secondary 4 NA Chemistry Mind Maps and Notes
Internal energy is the total amount of kinetic and chemical potential energy of all the particles in that matter. When external energy is given to this matter, the particles speed up and gain kinetic energy, lowering… Read More »Internal Energy of Matter
Kinetic particle theory states that all matter is made up of tiny particles and that these particles are in constant random motion. Learning Slides You can find the Mentimeter slides to teach Kinetic Particle Theory… Read More »Kinetic Particle Theory
