MCQ
An element has number of proton $= 7.$ Then what will be its atomic number?
- A$9$
- ✓$7$
- C$16$
- D$2$
✓
Answer
Correct option: B.
$7$
Atomic number of any element is equal to number of proton or number of electron
Atomic Number $=$ no. of proton $=$ no of electron.
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