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What does the atomic number of an element count?
AIts neutrons
BIts protons
CIts molecules
DIts compounds
Answer & Solution
Correct answer: B. Its protons
1. Atoms are built from protons, neutrons and electrons.
2. The atomic number counts how many protons an atom of that element has.
3. No two elements have the same number of protons, so the number is unique.
4. Hydrogen has atomic number 1 and carbon has atomic number 6.
_Source: Siyavula Natural Sciences Grade 7 (CC BY 4.0), Atomic numbers_
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