Examlex
The part description is stored with the information about parts.
Element
A pure chemical substance consisting of one type of atom distinguished by its atomic number.
Nucleus
The central and most important part of an atom, containing protons and neutrons and almost all of its mass.
Matter
Anything that occupies space and has mass, composed of atoms or molecules and is the substance that makes up the physical universe.
States
Different forms in which matter can exist, typically observed as solid, liquid, gas, and plasma.
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