Pick the odd one out:
- positron
- cyclotron
- neutron
- electron
The Correct Option is B
Solution and Explanation
Positron, neutron, and electron are all subatomic particles.
Cyclotron is a type of particle accelerator used to accelerate charged particles.
So, the correct option is (B): cyclotron.
Top Questions on Discovery of Sub-atomic Particles
- Henry Moseley studied characteristic X-ray spectra of elements. The graph which represents his observation correctly is
Given v = frequency of X-ray emitted
Z = atomic number- JEE Main - 2023
- Chemistry
- Discovery of Sub-atomic Particles
- Which of the following compound does not contain sulphur atom?
- JEE Main - 2022
- Chemistry
- Discovery of Sub-atomic Particles
- Which one of the following has unit positive charge and $1$ amu mass?
- Rajasthan PMT - 2006
- Chemistry
- Discovery of Sub-atomic Particles
- The charge on an electron was discovered by:
- Punjab PMET - 2005
- Chemistry
- Discovery of Sub-atomic Particles
- The nucleus of an atom consists of
- Chemistry
- Discovery of Sub-atomic Particles
Questions Asked in JIPMER exam
- Binomial nomenclature was first introduced by
- JIPMER - 2015
- KCET - 2022
- Diversity In The Living World
- A convex lens $'A'$ of focal length $20\, cm$ and a concave lens $'B'$ of focal length $5\, cm$ are kept along the same axis with a distance $'d'$ between them. If a parallel beam of light falling on $'A'$ leaves $'B'$ as a parallel beam, then the distance $'d'$ in cm will be :
- JIPMER - 2021
- Spherical Mirrors
- A bacterial flagellum is composed of
- JIPMER - 2021
- Prokaryotic Cells
- $2,4-DNP $ test can be used to identify :
- JIPMER - 2021
- Chemical Reactions
- How many moles of acidified $K_2Cr_2O_7$ is required to liberate $6$ moles of $I_2$ from an aqueous solution of $I^-$ ?
- JIPMER - 2020
- Mole concept and Molar Masses
Concepts Used:
Discovery of Atom
According to the school textbooks, the man credited by modern science for managing extensive research work on atoms and developing atomic theory goes to an English chemist and physicist John Dalton. However, it might be surprising for many people today but some early records or shreds of evidence show that the concept of atoms was actually formulated much earlier.
The recorded history of the atom started around 450 B.C. with a Greek philosopher commonly known as Democritus. Often, he used to wonder that if a piece of the matter was cut into smaller and smaller portions then the process would get to a point where that matter could not be divided into finer or smaller pieces. He named these indivisible pieces or basic units atoms (uncuttable) which lately translated to the modern term atom.
So the basic idea that matter comprises tiny indivisible particles is actually quite old. It has been existing not only in ancient Greece cultures but in India as well. However, the only reason that these we discredit was because this ancient idea was majorly based on philosophical reasoning rather than scientific reasoning.
Scientifically, John Dalton did revive Democritus’s early ideas about the atom and he organized many experiments that provided evidence for the existence of atoms. Often, he has been referred to as the father of atoms or atomic theory.
Read More: Structure of Atom