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N-Level

Atomic Structure

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

Internal Energy of Matter

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