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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.
What else can I help you with?
How can you tell its an element?
An element has a characteristic number of protons in the nucleus of its atoms. Whenever scientists find an atom with a different number of protons in the nucleus than of any known element, they know that they have discovered a new element.
What country was the element argon discovered in?
Argon was discovered in the United Kingdom by the scientists Lord Rayleigh and Sir William Ramsay in 1894.
What year was lawrencium discovered in and by who?
Lawrencium was discovered in 1961 by a team of scientists led by Albert Ghiorso at the Lawrence Berkeley National Laboratory in California.
What scientist's experiment led to the discovery of protons?
There are two scientists. Goldstein is the first person that found it.
Thomson discovered that atoms were not simple spheres but contained what?
Thomson discovered that atoms were not simple spheres but contained smaller negatively charged particles called electrons, embedded within a positively charged material. This discovery formed the basis of the plum pudding model of the atom.
How long has it been that scientists have accepted that the nucleus of the atom consists of neutrons and protons?
Scientists have accepted that the nucleus of the atom consists of neutrons and protons since the early 20th century, around the 1920s. This understanding was developed through experiments by scientists like Ernest Rutherford and James Chadwick.
Which two scientists discovered the subatomic particles that make up the nucleus?
Ernest Rutherford and James Chadwick were the scientists who discovered the subatomic particles that make up the nucleus. Rutherford discovered the positively charged protons, while Chadwick discovered the uncharged neutrons.
Who discovered binomial particles?
Binomial particles like protons, neutrons, and electrons were discovered by multiple scientists. The electron was discovered by J.J. Thomson in 1897, the proton was discovered by Ernest Rutherford in 1919, and the neutron was discovered by James Chadwick in 1932.
What part of Dalton's theory of was disproved when scientists discovered that atoms contain protons electrons and neutrons?
John Dalton believed that atoms were the fundamental building blocks of matter, and that they could not be created, destroyed or split. However he was wrong, because atoms are made out of subatomic particles such as Protons, Neutrons and Electrons - and later still, it was discovered Protons and Neutrons too are made of even smaller particles.
How does the numbers discovered?
They were discovered by scientists
Who is discovered protons?
Ernert Rutherford
Who discovered that atoms were composed of protons and neutrons?
neutrons were discovered by james chadwick by an experiment which was started by madam curie. protons were discovered by rutherford in his alpha ray scattering experiment
How have scientists discovered the ozone layer hole?
The scientists have discovered ozone hole due to technology. Advancements led them to find it.
Is indicated by the sum of the protons and the neutrons?
By the sum of protons and neutrons we obtain the mass number of the atom which is written at the top of the atom periodic number. We can also obtain the mass number by adding the atomic number and the number of neutrons because the atomic number and the number of protons are same. You know that scientists have discovered some particles which are smaller than protons and neutrons and these are known as quartz.
What have scientists discovered?
they have discovered dinosaur bones and much more such as crystals
Who was The scientist that discovered the presence of protons in the nucleus?
goldstein
Who discovered the three parts of the atom and when?
In 1808 John Dalton made the "atomic theory" that said a atom was one solid mass. Than in 1904 Hantaro found the proton. In 1932 James Chadwick descovered the neutron. in 1897 j.j Thomson descovered the electron .....
