What are microscopic particles called?

particles much larger than atoms and molecules.

The term macroscopic particle normally applies to particles much larger than atoms and molecules. ... Another type, microscopic particles normally associates to particles of sizes varying from atoms to molecules, such as carbon dioxide, nanoparticles, and colloidal particles.

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evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.