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Atoms and Elements 01

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The latin name for copper is cuprum.

Atoms and Elements 01

Atoms and elements form the building blocks of matter. Learning about them helps us understand everything around us, from simple materials to the most complex substances.

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Fascinating Fact:

Gold is an element, and every piece of gold ever mined could fit into three Olympic-sized swimming pools.

In KS3 Science, pupils study atoms and elements to discover how matter is structured. Understanding these basics explains how substances form and interact in the world around us.

  • Atom: The smallest particle of an element that still has the element’s properties.
  • Element: A pure substance made of only one type of atom, like oxygen or iron.
  • Molecule: A group of atoms bonded together, such as H2O for water.
What is an atom in KS3 Science?

An atom is the smallest unit of matter that retains the properties of an element. It has protons, neutrons, and electrons arranged in a structure.

What is the difference between atoms and elements?

An atom is a single particle, while an element is a pure substance made up of only one type of atom. For example, all gold is made of gold atoms.

How many elements are in the periodic table?

There are currently 118 confirmed elements in the periodic table, each with unique properties and uses in science and everyday life.

1 .
Which of the following elements is a metal?
Magnesium
Nitrogen
Helium
Phosphorus
The others are non metals
2 .
What is listed in the Periodic Table?
Only compounds
Only elements
Only gases
Only metals
An element was defined by the famous scientist Robert Boyle in 1661. The ancient Greeks thought there were four elements - fire, earth, air and water. Nowadays, we know that not a single one of those is actually an element. Fire is something burning, earth and air are mixtures and water is a compound. Believe it or not, there are still some people who believe in the ancient Greek ideas of the elements!
3 .
Which of the following is a name for group 2 in the periodic table?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
These are harder than the Group 1 metals next to them
4 .
Which of the following elements is the odd one out and why?
Helium because it is a very light element.
Hydrogen because it is not a noble gas.
Krypton because it is used to kill superheroes.
Neon because it is the only element that flashes on and off.
The other three are all noble gases, hydrogen is a very odd element that doesn't really fit properly into any group of the periodic table
5 .
Which of the following is a name for group 1 in the periodic table?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
They are soft metals that react rapidly with water
6 .
Which of the following is a name for group 8 in the periodic table?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
About the only thing that they will react with is the element fluorine
7 .
Which of the following is a name for group 7 in the periodic table?
Alkali metals
Alkaline earth metals
Halogens
Noble gases
They are poisonous, coloured elements
8 .
Which of the following is the symbol for sodium?
Na
S
Sd
So
The latin name for sodium is natrium
9 .
Which of the following is the symbol for copper?
C
Ca
Co
Cu
The latin name for copper is cuprum
10 .
In the periodic table, what is a period?
A horizontal row
A vertical line
The left hand side
The middle block
A group is a vertical column of elements
You can find more about this topic by visiting BBC Bitesize - Atoms, elements and compounds

Author:  Sue Davison (Chemistry Specialist & KS3 Science Teacher, Quiz Writer)

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