This KS3 Science quiz asks questions about atoms and elements. Atoms are part of elements and elements are listed in the periodic table. Did you know that atoms are so small, one million atoms in a row is roughly equal to the thickness of a piece of paper? Imagine that!
There were two accepted systems of numbering the periodic table, one of which called the noble gases group VIIIA, often changed informally to group 8 (most commonly used in the USA) and the other that called it group 0 (most commonly used in Europe). The naming of anything in chemistry now is governed by a single organisation IUPAC (International Union of Pure and Applied Chemistry) and they have simplified the group numbering, the noble gases have now become group 18. Groups are also often referred to by the name of the first element in the group - the noble gases could also be called the helium group.
Other than groups 1 and 2, all of the other group numbers have changed. For example the halogens are no longer officially group 7, they are group 17. At the moment, many school text books still refer to the groups by their old numbers and names though some schools (maybe even yours) may already have changed. For the time being, in these quizzes, we use the numbers used by science teachers in most schools and exams.
[/readmore]
|
|
||||||||||||||||||||||||
|
|
||||||||||||||||||||||||
|
|
||||||||||||||||||||||||
|
|
||||||||||||||||||||||||
|
|
You can find more about this topic by visiting BBC Bitesize - Atoms, elements and compounds
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!
|
A group is a vertical column of elements
|
||||||||||||||||||||||||
They are soft metals that react rapidly with water
|
These are harder than the Group 1 metals next to them
|
||||||||||||||||||||||||
They are poisonous, coloured elements
|
About the only thing that they will react with is the element fluorine
|
||||||||||||||||||||||||
The others are non metals
|
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
|
||||||||||||||||||||||||
The latin name for copper is cuprum
|
The latin name for sodium is natrium
|