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Chapter 8 Journey Inside the Atom - Part 3

What is the mass number (A) of an atom defined as?

Type: MCQ • Marks: 1
What is the mass number (A) of an atom defined as?
Options
A. Atomic number divided by two
B. Number of orbits
C. Sum of the number of protons and neutrons in the nucleus
D. Number of electrons
Explanation
Mass number A is the total count of nucleons (protons + neutrons).
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Class 9th Science (MCQ)

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