ICSE Class 8 Answered
1-define the terms : element, atom, molecule
Asked by palnavneet | 28 Apr, 2019, 13:14: PM
Expert Answer
Atom:
- An atom is very small in size and it consists of the subatomic particles protons, neutrons, and electrons.
- They are so small that they cannot be seen even under the most powerful microscope.
- About one million atoms stacked up one over the other would roughly equal the thickness of a sheet of a paper.
Molecule:
- A molecule is a group of two or more atoms chemically bonded together.
- Molecules can be formed either by the combination of atoms of the same element or of different elements.
- Thus, there are two types of molecules — molecules of elements and molecules of compounds.
Answered by Shiwani Sawant | 28 Apr, 2019, 16:15: PM
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