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In 1897 J.J.Thomson conducted an experiment in which he took a discharge tube with very less gas molecules in it.When he connected a cathode and an anode, some particles which he called cathode rays passed from the cathode to anode.
OBSERVATION:
@when a negative and positive plate were kept, the negative plate repelled the rays while the positive one attracted them. This means the ray's particles are negatively charged. @if a paddle wheel was kept in the path of the ray, the wheel started rotating, which means, these particles have energy.
@if an object and screen were kept, the shadow of the object fell on the screen after a green glow.This means these particles always move in a straight line.
It was then discovered by J.J.Thomson that these particles were electrons!
What else can I help you with?
Who discovered that electrons were found in the electron cloud?
i have no idea when it was discovered
What are Thomson accomplishments?
he discovered electrons
What shows up electrons?
Positive charge particles are called Protons Negatively charged particles are called Electrons Neutrons have no charge Protons was discovered by Ruther Ford Electrons was discovered by JJ Thompson Neutons was discovered by James Chadwick
Electrons were discovered in 1896 by?
J.J. Thomson.
What was the scientist name who discovered the electrons charge?
The scientist who discovered the charge of electrons was J.J. Thomson. He determined the charge-to-mass ratio of electrons through his experiments with cathode rays in the late 19th century.
Who discovered that electrons are negatively charge pieces of matter?
i did
Which of these was not discovered using the cathode ray tube?
Electrons
Why is electrons the first part of the atom discovered?
cause
Who discovered that electrons move in empty space in an atom?
It was Ernest Rutherford who discovered that atoms are mostly composed of empty space with electrons orbiting a very dense nucleus.
When Joseph john Thomson discover the electrons?
He discovered it 1897.
What was discovered in the CRT?
Cathode rays (later revealed to be electrons).
Who discovered electrons moved around the nucleus?
Ernest Rutherford
