Periodic Table — Introduction

Grade 8 Science — Periodic Table — Introduction: 25 practice questions with instant scoring and explanations.

1. Mendeleev arranged the periodic table based on:
2. The modern periodic table is arranged based on:
3. The vertical columns in the periodic table are called:
4. The horizontal rows in the periodic table are called:
5. Elements in the same group of the periodic table have:
6. Elements in the same period of the periodic table have:
7. Metals are generally located in the periodic table:
8. Non-metals are generally located in the periodic table:
9. Metalloids are elements that:
10. Which of the following is a metalloid?
11. The element hydrogen is placed at the top of Group 1 but:
12. Group 1 elements are called:
13. Group 17 elements are called:
14. Group 18 elements are called:
15. Why are noble gases relatively unreactive?
16. Alkali metals react with water to produce:
17. Halogens are:
18. Transition metals are characterized by:
19. The atomic radius of elements generally:
20. Atomic radius generally increases as you move:
21. Electronegativity is the ability of an atom to:
22. Ionization energy is the energy required to:
23. The block of elements where d-orbitals are being filled is:
24. How many periods are there in the modern periodic table?
25. How many groups are there in the modern periodic table?