1.1 Atoms, Elements and Compounds Flashcards
1
Q
How many different elements are there in the periodic table?
A
100
2
Q
What is each element made of?
A
Only one type of atom
3
Q
What are atoms represented by?
A
Chemical symbols
4
Q
What are all substances made of?
A
Atoms
5
Q
What are the elements in the periodic table arranged in?
A
Columns called ‘groups’
6
Q
What happens when elements react?
A
Their atoms join with other atoms of other elements
7
Q
What happens when two or more elements combine together?
A
Compounds are formed
