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100+ Free MTEL Chemistry Practice Questions

Pass your MTEL Chemistry (Field 67) exam on the first try — instant access, no signup required.

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How much heat is required to raise the temperature of 100 g of water by 10 degrees C? (Specific heat of water = 4.18 J/g degrees C)

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2026 Statistics

Key Facts: MTEL Chemistry Exam

240

Passing Scaled Score

MTEL Chemistry (67) test information

$139

Test Fee in 2026

Public MTEL fee schedule

100 MC + 2 OR

Test Structure

MTEL Chemistry (67) test page

4 hours

Total Testing Time

MTEL Chemistry (67) test page

6 subareas

Content Framework

MTEL Chemistry objectives

~22%

Heaviest MC Subarea (Structure and Reactions)

MTEL Chemistry objectives

Field 67

MTEL Test Code

MTEL test catalog

Grades 8-12

Chemistry License Span

Massachusetts DESE

MTEL Chemistry (Field 67) is the Massachusetts subject-matter test for the Chemistry (8-12) license. It contains 100 multiple-choice questions plus 2 open-response items in a 4-hour session, with a passing scaled score of 240 and a current public fee of $139. Multiple-choice questions span five content subareas, weighted roughly 12% periodic properties, 22% chemical structure and reactions, 12% substances/mixtures/solutions, 15% forces and interactions, and 19% energy in chemical systems; the sixth subarea (Integration of Knowledge and Understanding, about 20%) is assessed through the two open-response items. This free 100-question bank mirrors that multiple-choice blueprint so 2026 candidates can practice every tested domain and review answer explanations by objective.

Sample MTEL Chemistry Practice Questions

Try these sample questions to test your MTEL Chemistry exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which subatomic particle determines the identity of an element?
A.The number of protons
B.The number of neutrons
C.The number of electrons
D.The total number of nucleons
Explanation: An element is defined by its atomic number, which is the number of protons in the nucleus. Changing the proton count changes the element. Neutrons produce isotopes and electrons produce ions, but neither alters elemental identity.
2An atom of an element has 17 protons, 18 neutrons, and 17 electrons. What is its mass number?
A.17
B.18
C.35
D.52
Explanation: Mass number equals the sum of protons and neutrons in the nucleus: 17 + 18 = 35. Electrons have negligible mass and are not counted. This atom is a neutral chlorine-35 atom.
3Two atoms are isotopes of each other if they have the same number of which particle but different numbers of another?
A.Same protons, different neutrons
B.Same neutrons, different protons
C.Same electrons, different protons
D.Same protons, different electrons
Explanation: Isotopes are atoms of the same element, so they share the same number of protons (atomic number) but differ in the number of neutrons, giving them different mass numbers. For example, carbon-12 and carbon-13 both have 6 protons.
4What is the ground-state electron configuration of a neutral oxygen atom (Z = 8)?
A.1s2 2s2 2p4
B.1s2 2s2 2p6
C.1s2 2s4 2p2
D.1s2 2s2 2p2 3s2
Explanation: Oxygen has 8 electrons. Filling orbitals by increasing energy gives 1s2 (2), 2s2 (2), and 2p4 (4), totaling 8 electrons. The 2p subshell holds up to 6 electrons, so 4 of them remain in 2p.
5According to the Pauli exclusion principle, what is the maximum number of electrons that can occupy a single atomic orbital?
A.1
B.2
C.6
D.8
Explanation: The Pauli exclusion principle states that no two electrons in an atom can have the same set of four quantum numbers. A single orbital can therefore hold at most two electrons, which must have opposite spins.
6Moving from left to right across a period in the periodic table, atomic radius generally does what?
A.Increases
B.Decreases
C.Stays the same
D.Increases then decreases
Explanation: Across a period, protons are added to the nucleus while electrons fill the same principal energy level. The increasing nuclear charge pulls the electron cloud inward more strongly, so atomic radius decreases from left to right.
7Which element has the highest electronegativity?
A.Oxygen
B.Fluorine
C.Chlorine
D.Nitrogen
Explanation: Fluorine has the highest electronegativity of all elements (about 3.98 on the Pauling scale). Electronegativity increases across a period and decreases down a group, placing fluorine at the top-right of the reactive nonmetals.
8Why does first ionization energy generally increase across a period?
A.Atomic radius increases, holding electrons more loosely
B.Increasing nuclear charge holds valence electrons more tightly
C.More energy levels shield the valence electrons
D.The number of neutrons increases
Explanation: As nuclear charge increases across a period while electrons remain in the same energy level, the valence electrons are held more tightly. More energy is therefore required to remove an electron, so first ionization energy increases.
9Elements in the same group of the periodic table have similar chemical properties primarily because they have the same number of what?
A.Neutrons
B.Energy levels
C.Valence electrons
D.Protons
Explanation: Elements in the same group share the same number of valence (outermost) electrons, which determine how an atom bonds and reacts. This shared valence configuration gives a group its characteristic chemical behavior.
10Which scientist's gold foil experiment provided evidence for a small, dense, positively charged nucleus?
A.John Dalton
B.J.J. Thomson
C.Ernest Rutherford
D.Niels Bohr
Explanation: Ernest Rutherford's gold foil experiment showed that most alpha particles passed through the foil while a few were deflected sharply. This led to the nuclear model in which the atom's positive charge and mass are concentrated in a tiny central nucleus.

About the MTEL Chemistry Exam

The MTEL Chemistry (Field 67) test measures the chemistry content knowledge required for the Massachusetts Chemistry teacher license. It covers periodic properties, chemical structure and reactions, substances and solutions, forces and interactions, energy in chemical systems, and the integration of knowledge through open-response analysis and experimental design.

Questions

100 scored questions

Time Limit

4 hours of total testing time

Passing Score

240 scaled score

Exam Fee

$139 (Massachusetts DESE / Pearson)

MTEL Chemistry Exam Content Outline

15% of this bank

Periodic Properties (Subarea I)

Atomic and subatomic structure, isotopes and mass number, quantum theory and electron configuration, atomic models, and periodic trends including atomic radius, electronegativity, and ionization energy.

23% of this bank

Chemical Structure and Reactions (Subarea II)

IUPAC nomenclature, organic functional groups and isomers, ionic and covalent bonding, Lewis structures and VSEPR geometry, reaction types, balancing equations, stoichiometry, titration, and percent yield.

18% of this bank

Substances, Mixtures, and Solutions (Subarea III)

Molar and formula mass, percent composition, empirical and molecular formulas, solution molarity and dilution, colligative properties, acid-base theory, and pH/pOH calculations.

15% of this bank

Forces and Interactions (Subarea IV)

Kinetic molecular theory, gas laws and the ideal gas law, phase changes and phase diagrams, intermolecular forces, and chemical equilibrium with Le Chatelier's principle, equilibrium constants, and buffers.

18% of this bank

Energy in Chemical Systems (Subarea V)

Reaction rates and rate laws, thermodynamics and calorimetry, bond energy and enthalpy, Gibbs free energy and spontaneity, oxidation-reduction, oxidation numbers, and electrochemical cells.

11% of this bank

Lab Safety and Scientific Inquiry

Laboratory safety, personal protective equipment, Safety Data Sheets, experimental design and variables, significant figures, accuracy versus precision, SI units, and applying chemistry to engineering design.

How to Pass the MTEL Chemistry Exam

What You Need to Know

  • Passing score: 240 scaled score
  • Exam length: 100 questions
  • Time limit: 4 hours of total testing time
  • Exam fee: $139

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

MTEL Chemistry Study Tips from Top Performers

1Spend the most time on bonding, reactions, and stoichiometry because Chemical Structure and Reactions is the heaviest multiple-choice subarea
2Practice mole, molarity, and percent-yield calculations until you can set them up quickly without a formula sheet
3Memorize key periodic trends and intermolecular forces, then explain why each trend occurs rather than just the direction
4Rehearse open responses by analyzing a concept with a labeled diagram and by designing a controlled, safe experiment
5Drill thermochemistry and electrochemistry relationships such as q = mc(delta)T, delta G = delta H - T delta S, and anode-oxidation
6Review laboratory safety rules, Safety Data Sheets, and proper acid dilution, since safety appears throughout the framework

Frequently Asked Questions

What is on the MTEL Chemistry (67) test?

The test covers six subareas: periodic properties; chemical structure and reactions; substances, mixtures, and solutions; forces and interactions; energy in chemical systems; and integration of knowledge. The first five are assessed with 100 multiple-choice questions, and the sixth is assessed with two open-response items.

What passing score do I need on MTEL Chemistry?

You need a scaled score of 240 to pass the MTEL Chemistry (67) test, the same standard used across MTEL fields. Scores are reported as scaled scores rather than as a raw percentage of questions answered correctly.

How much does the MTEL Chemistry test cost in 2026?

The current public fee for the MTEL Chemistry (67) test is $139. Always confirm the exact fee in your Pearson registration portal before checkout, because MTEL fees and bundle options can change between testing years.

How many questions are on the MTEL Chemistry test and how long is it?

The MTEL Chemistry (67) test has 100 multiple-choice questions plus 2 open-response items, and you have 4 hours of total testing time. The open-response items ask you to analyze concepts and design experiments for diverse learners.

Which content subarea carries the most weight on MTEL Chemistry?

Among the multiple-choice subareas, Chemical Structure and Reactions carries the most weight at about 22%, followed by Energy in Chemical Systems at about 19% and Forces and Interactions at about 15%. Prioritize bonding, reactions, stoichiometry, and energy when you study.

Do I need other MTEL tests besides Chemistry for licensure?

Yes. In addition to the Chemistry (67) subject test, Massachusetts candidates must pass the Communication and Literacy Skills test, and core academic teachers must also hold the Sheltered English Immersion endorsement. Confirm your full checklist with DESE before registering.