New
New
Year 7
Common elements
I can communicate clearly some properties, uses and dangers of one or two common elements.
New
New
Year 7
Common elements
I can communicate clearly some properties, uses and dangers of one or two common elements.
Lesson details
Key learning points
- Hazard symbols are used to decribe the dangers of substances.
- Each element has its own distinct properties.
- Metalloid elements have some properties of metals and some properties of non-metals.
Common misconception
Elements cannot have metal and non-metal properties.
Introduction of the metalloids and discussion of their properties.
Keywords
Hazard - A danger associated with a substance.
Metalloid - An element that shares some properties with metals and some properties with non-metals.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
Loading...
Starter quiz
Download starter quiz
6 Questions
Q1.
What is an element?
a substance made from two or more different types of atoms bonded together
a substance made from different types of atoms mixed together
Q2.
Which of these is a common property of metals?
Brittle
Insulator of heat
Poor conductor of electricity
Q3.
Most non-metals are in the state at room temperature.
Q4.
Where are metals typically located on the periodic table?
Top right
Bottom left
Only in the middle rows
Q5.
Which symbol suggests there may be a fire risk/hazard?
Q6.
Match the property of the substance to its potential use.
Electrical wiring
Jackets and coats
Fuel
Jewellery
Exit quiz
Download exit quiz
6 Questions
Q1.
What does a hazard symbol on a substance indicate?
The substance is safe to use.
The substance is a metalloid.
The substance is a metal.
The substance is a non-metal.
Q2.
Which of the following is a characteristic of metalloids?
They all conduct electricity as well as metals.
They are all gases at room temperature.
Q3.
Boron (B) is an example of a metalloid. Astatine (As) is sometimes classed as a metalloid. Give the elemental symbol of another metalloid.
Q4.
What one word can be used to give the meaning of this hazard symbol?
Q5.
A hazard symbol is used to show...
a high risk of an accident.
a low risk of an accident.
Q6.
Which of the following hazard symbols shows that a substance is very bad for the environment, and if swallowed could kill you or other organisms that consume it?
