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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.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoThe person who discovered protons was Rutherford, and the person who discovered neutrons was Chadwick, and the person who discovered electrons was Thomson, just in case you were wondering for some reason.
Wiki User
∙ 12y agoBy Tom Stornello and Madison Lackey
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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.
Who were the scientists who discovered iron?
Iron was discovered long before we had people who could be called scientists.
Did Mendeleev know about protons neutrons and electrons?
Protons and electrons were discovered toward the end of his life.
Who discovered toxoplasmosis?
A group of scientists.
Who discovered that protons exIst in the nucleus?
george roger dicovered this
How long has it been that scientists have accepted that the nucleus of the atom consists of neutrons and protons?
Ernest Rutherford discovered protons in the nuclei of atoms in 1918, and James Chadwick discovered neutrons in 1932.
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.
How does the numbers discovered?
They were discovered by scientists
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.
Who were the scientists who discovered iron?
Iron was discovered long before we had people who could be called scientists.
Who is discovered protons?
Ernert Rutherford
Who are scientists that discovered medicines and what are the diseases they discovered?
Medicines have been used longer than scientists have existed.
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
What subatomic particle was discovered second?
Protons
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 is the subatomic particle discovered by Chadwick?
In 1932, James Chadwick discovered the neutron. Neutrons help stabilize the protons in the atom's nucleus. Because the nucleus is so tightly packed together, the positively charged protons would tend to repel each other normally. Neutrons help to reduce the repulsion between protons and stabilize the atom's nucleus. Neutrons always reside in the nucleus of atoms and they are about the same size as protons. However, neutrons do not have any electrical charge; they are electrically neutral.
How have scientists discovered the ozone layer hole?
The scientists have discovered ozone hole due to technology. Advancements led them to find it.
