Question 1
An atom of chlorine has atomic number 17 and mass number 35. How many protons, neutrons and electrons does a neutral chlorine atom contain?
Correct Answer:
17 protons, 18 neutrons, 17 electrons
Question 2
Isotopes of the same element always have the same number of:
Correct Answer:
protons
Question 3
Chlorine has two common isotopes: 75% chlorine-35 and 25% chlorine-37. What is the approximate relative atomic mass of chlorine?
Correct Answer:
35.5
Question 4
What is the electron configuration of a magnesium atom (atomic number 12)?
Correct Answer:
2,8,2
Question 5
Which statement best describes how a covalent bond forms between two non-metal atoms?
Correct Answer:
They share one or more pairs of outer-shell electrons
Question 1
Exam overview

About this Exam

Prepare with the MATSEC SEC Chemistry Practice Questions - Malta Secondary Education Certificate (SEC) Chemistry - SEC 06 (2026) Exam practice quiz. This question bank includes 100 questions covering water, reaction, mass, acid, and copper. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

MATSEC SEC Chemistry Practice Questions - Malta Secondary Education Certificate (SEC) Chemistry - SEC 06 (2026) Exam

This practice set contains 100 questions from the matching question bank and focuses on water, reaction, mass, acid, and copper. 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.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.
No fixed duration is currently configured for this quiz.
Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.
Yes. You can retake the practice test again as you continue studying during your available access period.
After your access is confirmed, you can continue into the complete practice exam from this quiz flow.
Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.
Keep studying

Related Questions