General Science - Physics (Basics)
The atomic number of an element is defined as the number of:
The atomic number of an element is defined as the number of:
easy Q12 of 15
Step-by-Step Solution
Step 1: Understand the definition
Atomic number is a fundamental property that defines an element uniquely.Step 2: Recall the fact
Atomic number equals the number of protons in the nucleus. Neutrons and electrons do not define atomic number.Final Answer:
Protons in the nucleus → Option CQuick Check:
Atomic number = Number of protons ✅
Quick Trick: Atomic number = protons, mass number = protons + neutrons.
Common Mistakes:
- Mistaking atomic number for number of neutrons or electrons.
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