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Atomic Structure QUESTIONS

Exam NameAtomic Structure QUESTIONS
DescriptionAtomic Structure QUESTIONS and Answers exams contains the questions from various competitive exams.These questions are the part of previous year paper.These kind of questions would be helpful in preparing for exams like IAS, PCS, UPSC, NDA, CDS SSC, RRB, PSC, IBPS

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Question: Neutron was discovered by;-


Question: The constituent particle of a nucleus in an atom are--

Answer:proton and neutron

Question: The a-particle carries two positive charges. Its mass is very nearly equal to that of-

Answer:an atom of helium

Question: In an atom the order of filing up of the orbitals is governed by-

Answer:Aufbau principle

Question: Regarding the atom of a chemical element, the magnetic quantum number refers to -


Question: By which one of the following an old written material which can not be read easily can be read ?

Answer:x -- rays

Question: Wavelength of which of the following colours of the visible spectrum of light are maximally absorbed by green plants-

Answer:red and blue

Question: Which of the following has highest frequency ?

Answer:Cosmic rays

Question: Which of the following electromagnetic wave has the longest wave length ?

Answer:Infra red rays

Question: Which of the following has the longest wave length ?

Answer:infra red radiation

Question: Which electromagnetic radiation is emitted by radioactive substances-


Question: Wave length of X-rays is of the order of-

Answer:1 angstorm

Question: Propagation of light quanta may be described by -


Question: Which of the following is not electromagnetic in nature-

Answer:cathode rays

Question: Which one of the following elements has two electrons in the K-shell only-


Question: Whose experiment proved that the speed of light was always the same-

Answer:Michelson and Morley

Question: An atom has 7 electrons in its M- shell and contains 18 neutrons in its nucleus. What is its mass number ?