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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
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.
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 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.
Did mendeleev know about protrons?
No, Dmitri Mendeleev did not know about protons. The concept of protons was not discovered until later in the 20th century, after Mendeleev's time. Mendeleev is most famous for creating the periodic table of elements.
Who and how did the subatomic particles get discovered for protons?
Ernest Rutherfod in 1917-1919 after the gold-foil experiment.
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.
How many protons in strontium?
There 38 protons in strontium. Strontium is No. 38 in the Periodic Table.. This indicates the number of protons and electrons in a neutral atom of strontium . Strontium is named after the Scottish village, Strontian, in the Highlands of Scotland, where it was first discovered.
How was cerium discovered?
Cerium was discovered in 1803 Cerium--- Ce atomic number--- 58 atomic mass--- 140.116 # of protons--=58 # of neutrons--- 82 # of electrons---58
Did bohr discover that the atoms mass came frome neutrons and protons?
Rutherford discovered that almost entire mass of an atom is located in the nucleus, and then, the neutron was discovered by Chadwick.
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.
