Question 1
What subatomic particle has a positive electrical charge and is located in the nucleus of an atom?
Correct Answer:
Proton
Question 2
What does the atomic number of an element represent?
Correct Answer:
The number of protons in the nucleus
Question 3
Two atoms are isotopes of each other if they have the same number of ____ but different numbers of ____.
Correct Answer:
protons; neutrons
Question 4
How many electrons can the second electron shell (n=2) hold at maximum?
Correct Answer:
8
Question 5
An atom of sodium (Na) has an atomic number of 11 and a mass number of 23. How many neutrons does this atom contain?
Correct Answer:
12
Question 1
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Prepare with the HESI A2 Chemistry Practice Questions - HESI A2 Chemistry Section Exam practice quiz. This question bank includes 100 questions covering solution, reaction, many, number, and atomic. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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HESI A2 Chemistry Practice Questions - HESI A2 Chemistry Section Exam

This practice set contains 100 questions from the matching question bank and focuses on solution, reaction, many, number, and atomic. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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