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Atomic structure Categories

Multiple Choice Questions GK on Atomic structure

Question 1 : Within an atom, the nucleus when compared to the extra nuclear part is

A. same size

B. smaller in volume and lighter in mass

C. smaller in volume but heavier in mass

D. bigger in volume and heavier in mass

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Atomic Structure,

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Question 2 : Who of the following was awarded the Nobel Prize for his measurement of elementary electronic charge?

A. JJ Thomson

B. James Chadwick

C. Robert Millikan

D. Rutherford

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Question Listed : Atomic Structure, Nobel Prize,

Question 3 : Who is credited with the discovery of electron?

A. Niels Bohr

B. Ernest Rutherford

C. James Chadwick

D. JJ Thomson

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Question Listed : JJ Thomson,

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Question 4 : Which one among the following most correctly determines the atomic number of an element?

A. Number of nucleons

B. Number of ions

C. Number of protons and electrons

D. Number of protons

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Question Listed : Proton,

Question 5 : Which of the following mostly accounts for the mass of an atom?

A. electron and neutron

B. electron and proton

C. neutron and proton

D. neutrons

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Question Listed : Neutron, Proton,

Question 6 : Which of the following is true about a charged atom?

A. anion has lost an electron

B. cation has gained an electron

C. cation is negatively charged

D. anion is negatively charged

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Question Listed : Atomic Structure,

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Question 7 : Which of the following is not a fundamental particle?

A. Electron

B. Alpha particle

C. Neutron

D. Proton

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Question Listed : Alpha Particle,

Question 8 : Which of the following determines the chemical properties of an element?

A. All of the above

B. Number of protons

C. Number of neutrons

D. Number of electrons

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Question Listed : Electron,

Question 9 : Which of the following defines the Mass number of an atom?

A. number of electrons

B. number of protons + number of neutrons

C. number of neutrons + number of electrons

D. number of protons + number of electrons

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Question Listed : Neutron, Proton,

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Question 10 : Which isotope of hydrogen contains only one proton and no neutron in its nucleus?

A. None of the above

B. tritium

C. deuterium

D. protium

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Question Listed : Protium,

Question 11 : What would be the atomic number of the element in whose atom the K and L shells are full?

A. lead

B. silver

C. platinum

D. gold

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Question Listed : Gold,

Question 12 : What would be the atomic number of the element in whose atom the K and L shells are full?

A. 16

B. 14

C. 12

D. 10

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Question Listed : Atomic Structure,

Question 13 : The proton is heavier than an electron by

A. 2827 times

B. 3837 times

C. 1837 times

D. 187 times

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Question Listed : Atomic Structure,

Question 14 : The number of protons in a negatively charged atom (anion) is

A. less than the number of electrons in the atom

B. more than the number of electrons in the atom

C. less than the atomic number of the element

D. more than the atomic number of the element

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Question Listed : Electron, Atom,

Question 15 : The isotopes of neutral atoms of an element differ in

A. Chemical properties

B. Number of electrons

C. Mass number

D. Atomic number

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Question Listed : Atomic Structure,

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