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Solids are a type of matter that hold their constituent particles tightly packed by using strong intermolecular forces and short internuclear distance. At low temperatures, the solid particles oscillate at their mean pos... More »

www.reference.com Science Chemistry Atoms & Molecules

The atomic theory formulated by the British chemist John Dalton proposes that atoms are indivisible particles comprising all matter; atoms of the same element share identical properties, including shape, size and mass; a... More »

www.reference.com Science Chemistry Atoms & Molecules

Every living and non-living component that comprises matter consists of molecules, which are formed from the chemical combination of microscopic particles known as atoms. Unlike atoms, molecules are able to transition fr... More »

www.reference.com Science Chemistry Atoms & Molecules
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Leptons and quarks constitute the smallest particles of matter, based on contemporary evidence in the field of particle physics. Traditionally, the atom was considered as the indivisible form of matter. More »

www.reference.com Science Chemistry Atoms & Molecules

The strong nuclear force, one of the four fundamental universal forces, is responsible for holding atoms together. Without it, the nucleus, consisting of positive protons and neutral neutrons, would have nothing to stop ... More »

www.reference.com Science Chemistry Atoms & Molecules

Intermolecular forces are responsible for the physical properties of a substance, such as its melting or boiling point, viscosity, solubility, surface tension and evaporation. The types of intermolecular forces are ionic... More »

www.reference.com Science Chemistry Atoms & Molecules

The forces that hold different atoms together are intramolecular forces called bonds. Additionally, there are interactive forces between atoms of different molecules, like the van der Waals force, but these are much weak... More »

www.reference.com Science Chemistry Atoms & Molecules