Chapter 8 Journey Inside the Atom - Part 3

What is the atomic number (Z) of an element defined as?

Type: MCQ • Marks: 1
What is the atomic number (Z) of an element defined as?
Options
A. Total number of neutrons
B. Total number of protons in the nucleus of an atom
C. Sum of protons and neutrons
D. Number of valence electrons
Explanation
Atomic number Z equals the number of protons in an atomic nucleus.
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Class 9th Science (MCQ)

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