Chemistry Atomic Structure Online Quiz Test MCQs

Given on this page is a free online quiz which includes important questions and answers about the Atomic Structure. All the individuals who want to improve their general knowledge or are currently preparing for any written exam related to this subject can now do so with ease by using our tests as a guide.

Chemistry Atomic Structure Online Quiz Test MCQs

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1. X-rays have same nature as:

Beta rays

Alpha rays

Gamma rays

Cathode rays

Question 1 of 15

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2. X-rays are attracted towards:

Anode

None of electrode

Any Electrode

Cathode

Question 2 of 15

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3. Which one of the following has the same number of electrons as an alpha particle?

H

Li⁺

He

H⁺

Question 3 of 15

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4. Neutron was discovered by:

Plank

Rutherford

Chadwick

Bohr

Question 4 of 15

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5. X-rays were discovered by:

Schrodinger

Rutherford

Bohr

Roentgen

Question 5 of 15

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6. Charge to mass ratio of electron was discovered by:

Millikan

Chadwick

J.J. Thomson

Rutherford

Question 6 of 15

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7. Which of the following was discovered first?

Charge of electron

All of above at same time

Charge to mass ration of electrons

Mass of electron

Question 7 of 15

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8. Max planck proposed quantum theory is:

1860

2000

1900

1800

Question 8 of 15

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9. The e/m value for positive rays is maximum:

Helium

Oxygen

Nitrogen

Hydrogen

Question 9 of 15

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10. The nature of positive rays depends on:

Nature of elecrode

Nature of dischasrge

Nature of resident gas

All of the above

Question 10 of 15

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11. In 1913, Mosley used the x-rays to determine:

Avogadro's number

Relative atomic mass

Atomic number

Mass number

Question 11 of 15

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12. Which of the following particles has longest wavelength, if they have same speed:

Proton

Positron

Electron

Neutron

Question 12 of 15

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13. According to Planck energy travels is a discontinuous manner and it is composed of large number of tiny discrete units called:

Planta

Particles

Photons

Quanta

Question 13 of 15

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14. Maximum potential energy that can electron can have within the atom is:

Equal to zero

Greater than zero

Infinite

Less than zero

Question 14 of 15

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15. Alpha rays consists of:

Protons

Hydrogen nucleus

Neutrons

Helium nucleus

Question 15 of 15

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