Question

i will mark it as brainliest

Answer 1

this is answer of 1st question

(1) J J Thomson atomic sperical in shape spherical shape which is radius upon 10 ^-10m.

(2)In atom two type of charges are present negative and positive charge.

(3)these two charges are uniformly distributed.

(4)electrons are distributed in an atom to make it more stable arrangement .

(4)many other names are also given to this model

(1)plum pudding model

(2) raising cutting model

(3)watermelon model

this is answer of 2nd question-

james chadwick discovered neutron.

(3) answer

protons are positive charged particles in the rays which carry protons are called Canal rays .

(4) answer

mass of electron -9.1×10^-31kg

mass of proton -1.672×10^-27kg

i not know wt u said after that but plz mark as branliest

Answer 2

Hey mate !!

Here you go

........

1. J.J Thomson proposed his model of the atom in 1903 , then only electrons and protons were known to be present in the atom . According to J.J THOMSON'S model of the atom :

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(i). An atom consists of a sphere of positive charge with negatively charged electrons embedded in it .

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(ii). The positive and negative charges in an atom are equal in magnitude , due to which an atom is electrically neutral . It has no overall positive or negative charge .

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(iii). THOMSON'S model of the atom is similar to a Christmas pudding .

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2. Neutron is discovered by the scientists JAMES CHADWICK .

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3. Canal ray is also known as ANODE RAY . An anode ray is a beam of positive ions that is created by certain type of gas discharge-tubes .

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4. The relative mass of a proton is 1U. But the mass of a proton with that of an electron, then the mass of a proton is 1840 times that of an electron . The absolute mass of proton is 1.6×10^-19 gram .

♥️I hope that it will helps you a lot♥️