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HESI A2 Exam Preparation

HESI A2 Exam Prep

Ace the HESI A2 exam with practice questions and mock tests.

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Atomic Structure

Practice questions for Atomic Structure in the HESI A2 exam.

Question 1 of 5

An unknown element is found to contain 45 protons and has an atomic mass of 64. What is its atomic number?
19
45
64
It cannot be determined