Atoms and Molecules : CBSE Class 9 IX Science
An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are very small; typical sizes are around 100 pm.
A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules are distinguished from ions by their lack of electrical charge. However, in quantum physics, organic chemistry, and biochemistry, the term molecule is often used less strictly, also being applied to poly atomic ions, dronstudy, dronstudy.com, CBSE, CBSE Science, class 9 SCIENCE, Class IX Science, Atoms and Molecules, atoms and molecules class 9, atoms and molecules class 9 full chapter, atoms and molecules class 9 cbse, atoms and molecules class 9 full chapter in hindi, atom and molecules class 9 in hindi.
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