The neutron

Name: The neutron
Author: Alfred B. Bortz
ISBN: 0823945308

Age Rating, Reading Level & Content Guide

by Alfred B. Bortz

Library of Subatomic Particles

Reading Level 9-10 C · Gentle Ages 16+ Sweet Spot Page-Turner

The text is written at a 9th grade reading level, the subject matter is intended for teens and adults (ages 16+), and the content is gentle with no concerning themes. Its HootRating code, C, means gentle content.

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About This Book

Dive into the fascinating journey behind the discovery of the neutron, a tiny particle that unlocked the mysteries of atomic structure. Explore how this breakthrough helped scientists understand isotopes and the powerful process of nuclear fission. This captivating story brings complex science to life for curious young minds.

Themes

Science & Nature Historical

Quick Assessment

This is a Level 9-10 book with gentle content intensity. It's a Sweet Spot read — challenging text with gentle themes, ideal for advanced or 2e readers. No notable content concerns flagged. Written for readers ages 16+.

Why we rated The neutron C (Gentle)

The neutron is written at a Level 9-10 reading level across 64 pages (approximately 6,982 words). Upper Grades / Adult (Ages 16+) is the typical interest range for this book — readers in that age band have the maturity and attention span suited to the story, separate from whether they can decode the words.

Read aloud, The neutron takes about 47 minutes, which fits within a single read-aloud session.

We rate The neutron as C (Gentle) because the content sits in the "Gentle" range — no conflict beyond everyday childhood experiences. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly gentle; no single dimension stands out as a concern.

No specific content flags were raised by community reviewers, which is consistent with the gentle intensity score.

Thematically, The neutron weaves together science & nature and historical.

Good fit for

✓ Children in the Ages 16+ range — the maturity and attention span match the story's pacing.
✓ Reluctant readers who need fast-paced, hook-heavy stories to stay engaged.
✓ Kids drawn to stories about science & nature, historical.
✓ Readers who fall hard for one book and want a long series to live in — there are 5 more books in the Library of Subatomic Particles series.
✓ Curious kids who prefer real-world topics over made-up stories.

Maybe not for

! Readers looking for something heavier — this is a gentle, low-stakes story by design.

For Parents

Content Intensity

C · Gentle

Emotional

Gentle

Physical

Gentle

Social

Gentle

Thematic

Gentle

Reading the HootRating code: the first letter is the content intensity (C = Gentle · L = Mild · M = Moderate · I = Intense · V = Very Intense); the second, when there is one, is the kind of content that drives it (E = Emotional · P = Physical · S = Social · T = Thematic). Reading level and age range are rated separately. How we rate

No conflict beyond everyday childhood experiences. Safe for sensitive readers.

Data confidence: standard

Was our "Gentle" content intensity rating accurate for this book?