What is Daltons atomic theory
Also explain Rutherford scattering experiment
Answers
Answer:
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Explanation:
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dalton atomic theory
Key Points
Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties.
Dalton based his theory on the law of conservation of mass and the law of constant composition.
The first part of his theory states that all matter is made of atoms, which are indivisible.
The second part of the theory says all atoms of a given element are identical in mass and properties.
The third part says compounds are combinations of two or more different types of atoms.
The fourth part of the theory states that a chemical reaction is a rearrangement of atoms.
Parts of the theory had to be modified based on the discovery of subatomic particles and isotopes.
RUTHRFORD ALPHA PARTICLE SCATTERING EXPERIMENT
in this he use alpha ray which is made up of neucleus of helium
and this alpha particle is bumbard on a gold foil
gold foil is kept under photocremic or phlorocent sheet
when bumbard the alpha particle he found that 99% ray are pass straight without any disturbance it mean that atom have max free space
very few 0.98% ray are deviate from their path
and about 0.02% are reverse back to its path by the centre
it mean the nucleus is in centre