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Ernert Rutherford
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∙ 11y ago
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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
Did Mendeleev know about protons neutrons and electrons?
Protons and electrons were discovered toward the end of his life.
Who was The scientist that discovered the presence of protons in the nucleus?
goldstein
What is the chemical symbol for the element with 133 and 197 protons in its nucleus?
Elements with 133 protons or 197 protons have not been discovered or named so far.
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.
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
Who said Protons exist?
described best by rutherford. first to figure out the atomic nucleus.
Thomson discovered that atoms were not simple spheres but contained what?
protons and neutrons. atoms are not the smallest thing but protons are. protons are slightly smaller than neitrons. but are not simple sphere's.
What did Einstein discover about atom?
Einstein discovered that atoms had protons and neutrons.
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.
