MCQ
An element has number of electrons $= 2$. Then what will be its atomic number?.
- A$1$
- B$4$
- C$3$
- ✓$2$
✓
Answer
Correct option: D.
$2$
Atomic number of any element is equal to number of protons or number of electrons.
Atomic no $=$ no of proton $=$ no of electron.
Atomic no $=$ no of proton $=$ no of electron.
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