UAE TLS Chemistry Test Practice Questions - UAE Teacher License Subject Test - Chemistry (MOE Teacher Licensure System) Exam - UAE TLS Chemistry Test Practice Questions - UAE Teacher License Subject Test - Chemistry (MOE Teacher Licensure System) Exam

Question 1

How many protons, neutrons and electrons are present in a neutral atom of the isotope chlorine-37 (atomic number 17)?

17 protons, 20 neutrons, 17 electrons 17 protons, 17 neutrons, 20 electrons 20 protons, 17 neutrons, 20 electrons 17 protons, 37 neutrons, 17 electrons

Correct Answer:

17 protons, 20 neutrons, 17 electrons

Question 2

Chlorine has two stable isotopes: chlorine-35 (75.77%) and chlorine-37 (24.23%). Which value is closest to its relative atomic mass?

35.0 35.5 36.0 37.0

Correct Answer:

35.5

Question 3

What is the full ground-state electron configuration of a neutral iron atom (Z = 26)?

1s2 2s2 2p6 3s2 3p6 4s2 3d6 1s2 2s2 2p6 3s2 3p6 3d8 1s2 2s2 2p6 3s2 3p6 4s2 4p6 1s2 2s2 2p6 3s2 3p6 4s2 3d4 4p2

Correct Answer:

1s2 2s2 2p6 3s2 3p6 4s2 3d6

Question 4

Which trend correctly describes atomic radius across Period 3 from sodium to chlorine?

Atomic radius increases because the number of energy levels increases Atomic radius decreases because nuclear charge increases while electrons enter the same shell Atomic radius stays constant because the period is unchanged Atomic radius decreases because electrons are removed across the period

Correct Answer:

Atomic radius decreases because nuclear charge increases while electrons enter the same shell

Question 5

Which element has the highest first ionization energy?

Sodium Magnesium Argon Aluminium

Correct Answer:

Argon

Question 1

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About this Exam

Prepare with the UAE TLS Chemistry Test Practice Questions - UAE Teacher License Subject Test - Chemistry (MOE Teacher Licensure System) Exam practice quiz. This question bank includes 100 questions covering reaction, acid, solution, equilibrium, and mass. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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UAE TLS Chemistry Test Practice Questions - UAE Teacher License Subject Test - Chemistry (MOE Teacher Licensure System) Exam

This practice set contains 100 questions from the matching question bank and focuses on reaction, acid, solution, equilibrium, and mass. 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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UAE TLS Chemistry Test Practice Questions - UAE Teacher License Subject Test - Chemistry (MOE Teacher Licensure System) Exam

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