GCSE Chemistry Periodic Table – Revision Challenge

Chemistry Quiz - Periodic Table 2 (Questions)

The Periodic Table helps you spot patterns in element behaviour. This GCSE Chemistry quiz focuses on predicting reactions and properties using groups, periods, and electron arrangement.

Explore the Topic →

(quiz starts below)

Fascinating Fact:

The periodic table can be used to predict how elements will react. Patterns in electron arrangement explain why these trends happen.

In GCSE Chemistry, Periodic Table knowledge goes beyond naming groups. You learn how electron arrangement links to chemical behaviour, so you can make sensible predictions about reactions and bonding. Elements in the same group have similar outer-shell electrons, which explains why they often form similar ions and react in comparable ways. Across a period, the number of protons increases and the electron structure changes in a clear pattern, helping you understand why properties shift from metals to non-metals and why reactivity rises or falls in different parts of the table.

Key Terms

Electron arrangement: The way electrons are organised in shells around the nucleus, written as numbers in each shell.
Group: A vertical column in the Periodic Table where elements have the same number of outer-shell electrons.
Period: A horizontal row in the Periodic Table where elements have the same number of electron shells.

Frequently Asked Questions

How does electron arrangement help predict reactions?

Electron arrangement helps predict reactions because the outer-shell electrons control how an atom bonds and forms ions. Elements with the same outer-shell electrons often react in similar ways.

Why do elements in the same group have similar properties?

Elements in the same group have similar properties because they have the same number of outer-shell electrons. This leads to similar ion charges, bonding patterns, and typical reactions.

What changes across a period in the Periodic Table?

Across a period, the atomic number increases by one each step and electrons fill the same outer shell. Properties change gradually, with elements tending to go from metallic to non-metallic behaviour.

Try These Related Quizzes

This quiz is designed to get you thinking of what you know about the elements on the periodic table. For each set of four elements, there are different possibilities, our answers are not the only correct ones. Take your time, have a piece of paper, pen or pencil plus your periodic table handy before the start. For each element mentioned, jot down their symbol, the number of electrons in their outer shell, the ions they form, whether they are metals or non metals, what group they are in, their reactivity, what state they are at room temperature, how they bond to other elements and whatever else you know or can find out about them. Whether or not you get full marks doesn't really matter, you will have spent valuable time revising the periodic table.

Which is the odd one out?

[ ]	Platinum
[ ]	Lithium
[ ]	Barium
[ ]	Magnesium

Which is the odd one out?

[ ]	Potassium
[ ]	Platinum
[ ]	Radon
[ ]	Gold

Which is the odd one out?

[ ]	Mercury
[ ]	Bromine
[ ]	Carbon
[ ]	Caesium

Which is the odd one out?

[ ]	Oxygen
[ ]	Fluorine
[ ]	Neon
[ ]	Iodine

Which is the odd one out?

[ ]	Phosphorus
[ ]	Arsenic
[ ]	Bismuth
[ ]	Sulfur

Which is the odd one out?

[ ]	Carbon
[ ]	Boron
[ ]	Zinc
[ ]	Iodine

Which is the odd one out?

[ ]	Potassium
[ ]	Calcium
[ ]	Magnesium
[ ]	Bromine

Which is the odd one out?

[ ]	Sodium
[ ]	Calcium
[ ]	Bromine
[ ]	Iodine

Which is the odd one out?

[ ]	Sodium
[ ]	Manganese
[ ]	Iron
[ ]	Gold

10.

Which is the odd one out?

[ ]	Polonium
[ ]	Boron
[ ]	Silicon
[ ]	Arsenic

Chemistry Quiz - Periodic Table 2 (Answers)

Which is the odd one out?

[x]	Platinum
[ ]	Lithium
[ ]	Barium
[ ]	Magnesium

Platinum is the only transition metal. It is also the only precious metal

Which is the odd one out?

[x]	Potassium
[ ]	Platinum
[ ]	Radon
[ ]	Gold

Potassium is the only reactive element

Which is the odd one out?

[ ]	Mercury
[ ]	Bromine
[x]	Carbon
[ ]	Caesium

Tricky one this - carbon is the only element that is a solid at 30°C. You should be familiar with bromine and mercury being liquids at room temperature but you then also need to know that caesium, being near the base of group I, has a very low melting point for a metal

Which is the odd one out?

[ ]	Oxygen
[ ]	Fluorine
[ ]	Neon
[x]	Iodine

Iodine is the only element that is not a gas at room temperature

Which is the odd one out?

[ ]	Phosphorus
[ ]	Arsenic
[ ]	Bismuth
[x]	Sulfur

All the other elements have 5 outer electrons, sulfur has 6

Which is the odd one out?

[ ]	Carbon
[ ]	Boron
[x]	Zinc
[ ]	Iodine

All the other elements form covalent bonds or you could also have reasoned that it is the only metal on the list

Which is the odd one out?

[x]	Potassium
[ ]	Calcium
[ ]	Magnesium
[ ]	Bromine

All the others' symbols are the first two letters of their English name. Potassium's symbol is from the Latin word for alkali, Kalium

Which is the odd one out?

[ ]	Sodium
[x]	Calcium
[ ]	Bromine
[ ]	Iodine

All the others form ions with either 1+ or 1- charge, calcium forms 2+ ions

Which is the odd one out?

[x]	Sodium
[ ]	Manganese
[ ]	Iron
[ ]	Gold

All the other metals are transition metals

10.

Which is the odd one out?

[x]	Polonium
[ ]	Boron
[ ]	Silicon
[ ]	Arsenic

Polonium is the only metal element

Leave Feedback

Chemistry Quiz - Periodic Table 2 (Questions)

Fascinating Fact:

Key Terms

Frequently Asked Questions

Try These Related Quizzes