Download App

Structure of the Atom — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
MCQ
Mass number of all elements represents number of $............$ ?
  • ✓
    Protons and neutrons
  • B
    Protons and electrons
  • C
    Electrons and neutrons
  • D
    None of the above
✓

Answer

Correct option: A.
Protons and neutrons

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q. [1 M]" from Structure of the Atom→Structure of the Atom — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

The inertia of a moving object depends on:
→
Nereis and Leech belongs to:
→
Who reported that entity of an organism is not because of the cell but collection of many cells?
→
Major source of formation of soil is:
→
Mucosal living of which organ differ from others in concern with number of layer of cell (simple/ strtified)?
→
The ratio of the total work done or total energy consumed to the total time taken is called:
→
The incorrect statement about newton's second law of motion is that:
→
Which of the following yields maximum milk / year?
→
An electric lamp of $100w$ is used for $5$ hours per day calculate the units of energy consumed by lamp in one day:
→
Which are not true cells in the blood?
→