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J. J. Thomson
What else can I help you with?
What element has 99 electrons?
The element with 99 electrons is einsteinium (Es), which has an atomic number of 99. It is a synthetic element that was first discovered as a result of nuclear tests in 1952.
Which inventor made electrons?
A electron is one of the 3 things you need to complet a ATOM. getting back to the subject , so a electron is a thing in the ELECTRON CLOUD.
What was a beam of electrons first called?
a beam of electrons was first called a cathode ray.
Did Mendeleev know about protons neutrons and electrons?
No, Mendeleev did not know about protons, neutrons, and electrons. He is best known for creating the periodic table of elements based on the properties of the elements without knowledge of the atomic structure. The discovery of protons, neutrons, and electrons came later with the development of atomic theory.
Scientists who discovered protons?
Protons were discovered when the nucleus of atoms were discovered. Electrons were already known about, so when the nucleus was discovered, it was known that it had to contain positively charged particles: protons. The nucleus was discovered by Ernest Rutherford by shooting alpha particles (helium nuclei, basically helium without the electrons) at a thin sheet of gold. Most of the alpha particles went straight through, but some if them were scattered. Rutherford deduced that these particles had hit something in the foil that didn't take up a large percentage of space: the nuclei of the gold atoms.
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
Why is electrons the first part of the atom discovered?
cause
Which of these was not discovered using the cathode ray tube?
Electrons
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 travel in different energy levels?
Bohr
