Question 1
An atom of potassium-39 has an atomic number of 19. How many neutrons are in its nucleus?
Correct Answer:
20 neutrons
Question 2
Which change would convert a fluorine atom into a different element?
Correct Answer:
Changing the number of protons in the nucleus
Question 3
Which subatomic particle has no charge and is found in the nucleus?
Correct Answer:
Neutron
Question 4
Moving left to right across a period on the periodic table, atomic radius generally decreases. What best explains this trend?
Correct Answer:
Nuclear charge increases while electrons occupy the same principal shell, pulling the cloud closer
Question 5
A sealed flask contains a sample of gas. Which observation best supports the particle model that gas particles are far apart and move freely?
Correct Answer:
The gas completely fills the flask and can be compressed noticeably
Question 1
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Prepare with the CMAS Science Grade 11 Practice Questions - Colorado Measures of Academic Success (CMAS) Science - Grade 11 Exam practice quiz. This question bank includes 100 questions covering energy, form, many, mass, and describes. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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CMAS Science Grade 11 Practice Questions - Colorado Measures of Academic Success (CMAS) Science - Grade 11 Exam

This practice set contains 100 questions from the matching question bank and focuses on energy, form, many, mass, and describes. 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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