Question

State the modifications for Dalton's atomic theory

Answer 1

Answer:

the modifications of dalton's atomic theory are  Dalton's theory had to be modified after mass spectrometry experiments demonstrated that atoms of the same element can have different masses because the number of neutrons can vary for different isotopes of the same element.

Explanation:

MODIFICATION of DALTON's ATOMIC THEORY: 1. Matter is made up of small indivisible particles called atoms: Atoms can, however, no longer be regarded as indivisible because according to Rutherford's discovery, atom is made up of three main subatomic particles called PROTONS, NEUTRONS AND ELECTRONS. 2.All matter consists of indivisible particles called atoms. Atoms of the same element are similar in shape and mass, but differ from the atoms of other elements. Atoms cannot be created or destroyed. Atoms of different elements may combine with each other in a fixed, simple, whole number ratios to form compound atoms

Answer 2

Dalton's atomic theory was the first detailed try for describing all matter in terms of atoms and their properties. Dalton established his theory on the law of conservation of mass and the law of constant composition

MODIFICATION of DALTON'S ATOMIC THEORY:

1. The matter is composed of small indivisible particles known as atoms:- Atoms can, but, no longer can be heeded as indivisible because according to Rutherford's discovery an atom is composed of three main subatomic particles known as protons, neutrons and electrons.
2. Atoms cannot be created or destroyed:- This statement is, however, acceptable for common chemical reactions but the finding of radioactivity has exhibited that atoms can be created or destroyed.
3. Atoms of the same elements are alike in each facet and differ from atoms of all other elements:- The finding of isotopes opposes this statement. It has shown that all atoms of an element are not precisely alike in all facets.
4. Atoms of varied elements can combine in simple whole number ratios for the formation of compound:- Atoms of organic compounds can exist in large whole number ratios example

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