Atomic Structure – Online MCQs – Physics 10th

1. Atomic mass (A) of deuterium is:

2. Consider the species ₁₇Cl³⁵ and ₁₇Cl³⁷ These species have:

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

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

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

6. Atomic mass of an element is equal to:

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

8. The symbol denotes the proton number is:

9. Isotopes of an element have:

10. It gives an isotope different physical properties.

11. Symbol of Tritium is:

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

13. The number of protons and neutrons is collectively known as:

14. The neutral atoms of all of the isotopes of the same element have:

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

16. If an element B has five protons and six neutrons, what will be the symbol of element B?

17. The mass of a neutron is:

18. Consider isotope ₉₂Cl²³⁷ of uranium. The number of neutrons in it is:

19. Which one of them are physical properties?

20. The atomic number (Z) tells us: