The periodic table
14 review questions with answers for The periodic table. Read them here, or play the set as a class game on the projector. Free to host, and students join with a code.
Modern periodic table orders elements by increasing…?
- Mass number
- Atomic numberRight answer
- Relative atomic mass
- Number of neutrons
What this set covers
How the table is organized, from periods and groups to Mendeleev's gaps, plus the family trends in alkali metals, halogens and group 18 elements. Transition metals and their use as catalysts round it out.
- Common mix-up
- Students often say reactivity rises down every group, but it increases down the alkali metals and decreases down the halogens, and the reason is different in each case.
- Review tip
- Sketch the table outline, shade groups 1, 17 and 18, and write one trend and one example reaction beside each before you check the questions.
All 14 questions and answers
Modern periodic table orders elements by increasing…?
Answer: Atomic number
Name for the horizontal rows of the table of elements?
Answer: Periods
Elements in the same group have the same number of…?
Answer: Outer electrons
Scientist who left gaps in his table for undiscovered elements?
Answer: Mendeleev
Element in group 2, period 3?
Answer: Magnesium
Side of the periodic table where most metals are found?
Answer: Left-hand side
Name for the group 1 elements?
Answer: Alkali metals
Name for the group 17 (group 7) elements?
Answer: Halogens
Group 18 (group 0) elements are unreactive because they have a…?
Answer: Full outer shell
Reactivity of the alkali metals down the group…?
Answer: Increases
Reactivity of the halogens down the group…?
Answer: Decreases
Gas given off when potassium reacts with water?
Answer: Hydrogen
Halogen that is a red-brown liquid at room temperature?
Answer: Bromine
Transition metals and their compounds are often used in industry as…?
Answer: Catalysts
Play it as a class game
Play this set opens it in splycr, where you can host it for your class straight away. Hosting needs no account: put the room code on the projector, and students join from a phone with the code and their first name. Each question plays as multiple choice, and the three wrong options were written for that question.