Question Detail

CHM 101 CHM 101 Past Questions Objective Question
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Question

The mass number of an atom is the sum of:
Options
A Electrons and protons
B Protons and neutrons
Correct Answer
C Neutrons and electrons
D Only protons
Correct Answer

Option B is the correct answer.

Detailed Explanation

The mass number (A) represents the total number of nucleons in an atom's nucleus. It is calculated by adding the number of protons (Z) and the number of neutrons (N).

Hint

Which subatomic particles contribute significantly to the mass of an atom?

Question Info

Course: CHM 101
Topic: CHM 101 Past Questions
Type: Objective
Difficulty: Not specified
Question 386 of 1872
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