Atomic Structure – Online MCQs – Physics 10th

Online MCQs Test | Unit 19 : Atomic Structure | Physics Class 10th | Sindh Board Science Group

Online MCQs Test of Chapter 19 (Atomic Structure) Physics Class 10th Science Group – Sindh Board. According to New Examination Pattern / Syllabus of Sindh Board

1. The number of electrons in an atom will be:

 
 
 
 

2. The smallest unit of matter is a:

 
 
 
 

3. Electrons are bound by a positively charged nucleus with the:

 
 
 
 

4. If Z = 6, the atom will be of:

 
 
 
 

5. Isotopes are two or more species of atoms of an element with:

 
 
 
 

6. The mass of a neutron is:

 
 
 
 

7. The protons and neutrons are collectively called:

 
 
 
 

8. Many essential properties of an isotope depend on its:

 
 
 
 

9. It gives an isotope different physical properties.

 
 
 
 

10. In an atom, the nucleus when compared to the extra-nuclear part, is:

 
 
 
 

11. Which expression is correct for atomic mass, A?

 
 
 
 

12. Symbol of Tritium is:

 
 
 
 

13. The relative mass of an electron is:

 
 
 
 

14. The atomic number (Z) tells us:

 
 
 
 

15. In magnitude, a proton has:

 
 
 
 

16. Atomic mass (A) of deuterium is:

 
 
 
 

17. The nucleus contains the neutrons and the protons bound tightly together by the nuclear forces, known as:

 
 
 
 

18. The symbol denotes the proton number is:

 
 
 
 

19. It distinguishes one element from another.

 
 
 
 

20. The maximum mass of an atom is concentrated in:

 
 
 
 


Online MCQs Test preparation for Physics Class 10th (Science Group Sindh Board) helps students practice effectively. These multiple-choice questions are taken from Unit 19 “Atomic Structure” of the Class 10th Physics textbook.
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