According to the Daltons atomic theory –a)Electrons, proton and ...
Dalton's Atomic Theory
According to Dalton's atomic theory, atoms are the basic building blocks of matter, and they have several fundamental properties. The theory was proposed by John Dalton in the early 19th century and laid the foundation for the modern understanding of atomic structure.
Key Points of Dalton's Atomic Theory:
1. Atoms are indivisible: According to Dalton, atoms are indivisible and cannot be further divided into smaller particles. This concept was later revised with the discovery of subatomic particles like electrons, protons, and neutrons.
2. Atoms of different elements have different properties: Dalton proposed that each element is composed of unique atoms that have specific properties. This idea forms the basis of the periodic table, where elements are arranged based on their atomic number and properties.
3. Atoms combine in whole number ratios: Dalton observed that atoms combine with each other to form compounds in simple, whole number ratios. This principle is known as the law of definite proportions and is still applicable in chemical reactions today.
4. Atoms are rearranged in chemical reactions: Dalton's theory states that atoms are neither created nor destroyed in a chemical reaction. Instead, they are rearranged to form new compounds. This concept is known as the law of conservation of mass.
5. Atoms of the same element are identical: Dalton assumed that all atoms of the same element are identical in terms of their mass, size, and chemical properties. However, this assumption was later revised with the discovery of isotopes, which are atoms of the same element with different numbers of neutrons.
Overall, Dalton's atomic theory provided a framework for understanding the behavior and properties of atoms, although some of its assumptions have been modified with subsequent scientific discoveries.
According to the Daltons atomic theory –a)Electrons, proton and ...
According to Dalton's atomic theory, all matter is composed of indivisible particles called atoms. Atoms of the same element are identical in size, mass, and chemical properties, while atoms of different elements have different properties. Atoms combine in fixed ratios to form compounds, and chemical reactions involve the rearrangement of atoms. Additionally, atoms are not created or destroyed in chemical reactions, but rather rearranged.
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