Question

notes of atoms and molecules class 9​

Answer 1

Answer:

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Answer 2

Answer:

Atom

• The tiniest constituents of an element that can participate in a chemical process are called atoms.
• Atomic radius is measured in nanometers to determine an atom's size.

Molecule

• It is the smallest component of an element or combination that is capable of existing on its own.
• The atoms that make up an element's molecules are all of the same kind.
• Monoatomic, diatomic, or polyatomic molecules are all possible.
• Compound molecules link together in specific ratios to form distinct types of atoms.

The Atomic Theory of Dalton

• Atoms are extremely small or microscopic building blocks that make up all stuff.
• Chemical reactions cannot generate or destroy atoms since they are not dividable.
• The size, mass, and chemical characteristics of every atom in a specific element are the same.

• Various elements' atoms have different sizes, masses, and chemical characteristics.
• Compounds are created when atoms join in ratios of a few small whole numbers.

• In a particular compound, the relative number and types of atoms remain constant.