GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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De Broglie
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John Dalton
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Rutherford
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I.Mendeleef
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Detailed explanation-1: -John Dalton, an English chemist, is credited for the first modern atomic theory on his experiments based on atmospheric gases.
Detailed explanation-2: -The 1st theory of an atom was given by sir John dalton that’s why that theory was known as Dalton’s atomic theory.
Detailed explanation-3: -Summary. Dalton’s atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties.
Detailed explanation-4: -Dalton’s Atomic Theory (1804) All matter is composed of extremely small particles called atoms. Atoms of a given element are identical in size, mass, and other properties. Atoms of different elements differ in size, mass, and other properties. Atoms cannot be subdivided, created, or destroyed.