elements and their uses Flashcards
1
Q
How many elements are there?
A
there are 118 known elements
2
Q
Where are elements listed?
A
on the periodic table
3
Q
Why are elements sometimes called ‘pure’?
A
because they are composed of only one type of atom
4
Q
What is a elements symbol?
A
A one or two letter abbreviation for a chemical element name
5
Q
What is a use of carbon?
A
Our bodies our made up of 18% carbon
6
Q
What is a use of chlorine?
A
A disinfectant
7
Q
What is a use of Silicon?
A
Used to make aluminium
