Free Printable WorksheetScienceGrade 9Science CurriculumNGSS HS-PS1-1, HS-PS1-2

9.24 Electron Energy Levels and Valence Electrons Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Physical Science with Earth and Science Science worksheet provides structured practice on 9.24 Electron Energy Levels and Valence Electrons. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

Electron Energy Levels and Valence Electrons: MCQ focus: use simplified electron arrangements to identify valence electrons and predict common bonding patterns. Aligned to NGSS high school Physical Science, Earth and Space Science, and Engineering Design; NRC/DCI; SEP/CCC; CCSS math/literacy connections; selected CA NGSS, NYSSLS, Florida CPALMS, and Texas TEKS references NGSS HS-PS1-1, HS-PS1-2 - NGSS-aligned Electron Energy Levels and Valence Electrons: NGSS: HS-PS1-1; HS-PS1-2; NRC/DCI: PS1.A-B; SEP/CCC: Models / Patterns; Common: RST.9-10.7; State refs: CA/NYSSLS same HS-PS PE family; FL SC.912.P.8; TX IPC matter strand.

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Physical Science with Earth and Science

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 9.24 Electron Energy Levels and Valence Electrons skill assessments:

Problem 1Difficulty: Mastery

Use the periodic table and Lewis-dot excerpt. Which unknown atom should be used to make a molecule with three H atoms in the simple valence model?

AN, because it has five valence electrons and typically forms three bonds.

BC, because it has four valence electrons and typically forms one bond.

CF, because it has seven valence electrons and typically forms three bonds.

DO, because it has six valence electrons and typically forms three bonds.

Solution & Explanation:Nitrogen has 5 valence electrons, so it commonly forms three covalent bonds to complete an octet. That fits a simple molecule with three hydrogen atoms.

Problem 2Difficulty: Mastery

An element with four valence electrons forms a network solid by sharing electrons with neighboring atoms. Which explanation is best?

AFour valence electrons mean the atom already has a full octet.

BFour valence electrons allow several covalent bonds rather than simple ion formation.

COnly atoms with one valence electron can share electrons.

DThe element must lose four protons to bond.

Solution & Explanation:Atoms with four valence electrons, such as carbon or silicon in many structures, often form multiple covalent bonds by sharing electrons instead of making simple ions.

Problem 3Difficulty: Mastery

Use the three Bohr-style diagrams. Which pair and formula match a 1:1 ionic compound?

AX and Z form XZ2.

BY and Z form YZ3.

CZ and X form Z3X.

DX and Y form XY.

Solution & Explanation:X has 2 valence electrons and can form X2+. Y has 6 valence electrons and can form Y2-. Their charges balance one-to-one, giving XY.

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Frequently Asked Questions

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Physical Science with Earth and Science Science students. It aligns with educational standard NGSS HS-PS1-1, HS-PS1-2 (NGSS: HS-PS1-1; HS-PS1-2; NRC/DCI: PS1.A-B; SEP/CCC: Models / Patterns; Common: RST.9-10.7; State refs: CA/NYSSLS same HS-PS PE family; FL SC.912.P.8; TX IPC matter strand.).