Structure Of The Atom Science Trivia Quiz For 9th Grade Students

Questions : 9 | Total Attempts: 605 | Recent Updated: 03-May-2020
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The three basic particles of an atom are proton, electron and neutron and the nucleus is present at the center of the atom. Proton is positively charged, the electron is negatively charged and neutron has no charge. The outermost regions of the atom are called electron shells and contain the electrons (negatively charged). So take this quiz and increase your knowledge about the structure of the atom.

Questions Excerpt


1. Which of the following correctly represents the electronic distribution in the Mg atom?

A. 3,8,1

B. 2,8,2

C. 1,8,3

D. 8,2,2

2. Rutherford's alpha particles scattering experiment resulted in the discovery of ....

A. Electron

B. Proton

C. Nucleus in the atom

D. Atomic mass

3. Elements with valency 1 are ....

A. Always metals

B. Always metalloids

C. Either metal or non metal

D. Always non metal

4. The first model of an atom was given by ....

A. N.Bohr

B. E.Goldstein

C. Rutherfordq

D. J.J.Thomson

5. An atom with 3 protons and 4 neutrons will have a valency of .....

A. 3

B. 7

C. 1

D. 4

6. The electron distribution in an aluminum atom is .....

A. 2,8,2

B. 8,2,3

C. 2,3,8

D. 2,8,3

7. The electron configuration of silicon is ....

A. 2,4,6

B. 2,8,4

C. 2,7,6

D. 2,8,8

8. Isotopes have the same atomic number but different .....

A. Number

B. Atomic number

C. Mass number

D. Elements

9. Which of the following statement is correct?

A. An atom has equal number of electrons and protons

B. An atom has equal number of electrons and neutrons

C. An atom has equal number of protons and neutrons

D. An atom has equal number of electron,protons and neutrons.

 

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