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Structure of the Atom · UPSC CDS/OTA · Question 35 of 35

Structure of the Atom: The mass number of an atom is equal to

Step-by-step solution. Structure of the Atom for UPSC CDS/OTA.

Topic
Structure of the Atom
Subject
General Studies
Difficulty
Medium
Solve Time
45-60 sec

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Q · Structure of the AtomMedium · 45s

The mass number of an atom is equal to:

TopicStructure of the Atom
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min

Step-by-Step Solution

The complete worked solution.

Every step explained - no skipped algebra.

The mass number (A) is the total number of protons and neutrons in an atom's nucleus.

Final Answer: Option D - Number of protons + neutrons
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The mass number of an atom is equal to - Structure of the Atom (General Studies) Solved Question