Download App

Structure of the Atom — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
MCQ
Which of the following statement is always correct?
  • ✓
    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 electrons protons and neutrons.
✓

Answer

Correct option: A.
An atom has equal number of electrons and protons.
When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges $($the electrons$)$ and positive electric charges $($the protons$)$. The total electric charge of the atom is therefore zero and the atom is said to be neutral.

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

Hydrated $\mathrm{CuSO}_4$ from its aqueous solution:
→
Which one from the following is an example of multicellular organism?
→
All matter is made of:
→
The rockets work on the principle of conservation of:
→
Aleuroplasts in a cell store:
→
Which one of the following is not important for individual health?
→
Which among the following produce seeds?
→
The time taken to complete one oscillation is called.
→
One small crystal of potassium permanganate can colour large volume of water. This proves that ____________:
→
Soil erosion is caused due to:
→