alleryStart learning →Atomic number is equal to the number of:
ANeutrons
BElectrons in inner shells
CProtons
DNucleons
Answer & Solution
Correct answer: C. Protons
1. The atomic number of an element is fixed.
2. It equals the count of protons in the nucleus.
3. In a neutral atom this equals the electron count too.
4. So atomic number equals the number of protons.
_Source: Selina Concise Chemistry ICSE Class 9, Ch 5 'The Periodic Table'_
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