Related Questions

A free electron is a valence electron that has broken away from its parent atom.
A True
B False
Who indirectly determined the mass of the electron by measuring the charge of the electron?
A Thomson
B Millikan
C Rutherford
D Einstein
Who discovered Electron?
A Niels Bohr
B J.J. Thomson
C Abert Einstein
D Ernest Rutherford
Which among the following has lowest electron affinity?
A Fluorine
B Chlorine
C Bromine
D Argon
Which among the following has highest electron affinity?
A Chlorine
B Fluorine
C Helium
D Xenon
Who among the following discovered X-rays?
A Marie Curie
B J.J Thomson
C W.C Roentgen
D James Chadwick
Who among the following discovered benzene?
A John Dalton
B Newton
C Priestley
D Michael Faraday
Benjamin Franklin was a prolific inventor. He invented the lightning rod, the Franklin stove, studied electricity, discovered the Gulf Stream, started the first library, and on and on. Among his many other inventions, what musical instrument did he invent?
A Banjo
B Oboe
C Clarinet
D Harmonium
Electron microscope works on which of the following principles?
A Optical interference
B Wave Nature of electrons
C Motion of charged particle in electromagnetic fields
D Faraday's law of Electromagnetic induction
Which of the following has least negative electron gain enthalpy?
A P
B S
C Cl
D F

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