Understanding Elements & Periodicity Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. As you move from left to right on the periodic table, why does the atomic radius decrease?

Question 2 2. As you move from top to bottom on the periodic table, what happens to the atomic radius?

Question 3 3. Which of these elements has the largest atomic radius: argon, phosphorus, aluminum, sodium or magnesium?

Question 4 4. How many valence electrons does krypton have?

Question 5 5. How many valence electrons does silicon have?

Page 2

Question 6 6. Which of the following elements has the same number of valence electrons as aluminum?

Question 7 7. Which of the elements below has the smallest ionization energy?

Question 8 8. What is ionization?

Question 9 9. Which of the elements below has the highest ionization energy?

Question 10 10. Atomic mass is calculated by adding:

Page 3

Question 11 11. The core of an atom is called the:

Question 12 12. The atomic mass of hydrogen is:

Question 13 13.

Which element is found in the group described by the statement below?

This group contains poisonous, very reactive elements often used in bacteria killing or household cleaners.

Question 14 14. Which of the following is the poorest conductor of electricity?

Question 15 15. Which of the following will react violently with water to form a base?

Page 4

Question 16 16. Which family has the lowest electronegativity?

Question 17 17. As you move from top to bottom on the periodic table, why does electronegativity decrease?

Question 18 18. As you move from left to right on the periodic table, what happens to the electronegativity?

Question 19 19. What are the correct coefficients when this equation is balanced?

Question 20 20. What is the correct balanced equation for the following reaction?

Page 5

Question 21 21. What are the correct coefficients when this chemical equation is balanced?

Question 22 22. Which element is more likely to exist in many different forms?

Question 23 23. Which of the following elements is a main group element?

Question 24 24. Why are the transition metals able to show different properties like varying color and paramagnetism?

Question 25 25. As you move from left to right on the periodic table, what generally happens to the metallic character of elements?

Page 6

Question 26 26. Which two elements would have the most similar atomic radii?

Question 27 27. As you move from left to right on the periodic table, what generally happens to the boiling point of elements?

Question 28 28. Which of these elements has the smallest atomic radius?

Question 29 29. Which element in the second column is likely to be the most reactive?

Question 30 30. As you move from top to bottom on the periodic table, what generally happens to the ionization energy?

Understanding Elements & Periodicity Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

GCSE Chemistry: Practice & Study Guide  /  Science Courses
Support