Question 1
Which subatomic particle determines the identity of an element?
Correct Answer:
Proton
Question 2
An atom has 19 protons, 20 neutrons, and 18 electrons. Which statement is correct?
Correct Answer:
It is a potassium ion with a +1 charge and mass number 39.
Question 3
Which electron configuration is correct for neutral magnesium?
Correct Answer:
1s2 2s2 2p6 3s2
Question 4
Across a period from left to right, atomic radius generally decreases because:
Correct Answer:
Effective nuclear charge increases while electrons enter the same principal energy level
Question 5
Which element would be expected to have the greatest electronegativity?
Correct Answer:
Fluorine
Question 1
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About this Exam

Prepare with the OSAT Chemistry Practice Questions - Oklahoma Subject Area Test Chemistry (104) Exam practice quiz. This question bank includes 100 questions covering solution, formula, reaction, expected, and water. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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OSAT Chemistry Practice Questions - Oklahoma Subject Area Test Chemistry (104) Exam

This practice set contains 100 questions from the matching question bank and focuses on solution, formula, reaction, expected, and water. 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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