Atoms, Elements & Compounds Flashcards
1
Q
What are atoms?
A
All substances are made up of these. These are the ‘building blocks of chemistry’.
2
Q
How many types of atoms are there?
A
About 100
3
Q
What are elements?
A
These are the simplest substances, they are made up of only one atom.
4
Q
What is a compound?
A
These are atoms of different elements chemically bonded together. They always keep the same ration, eg. H2O.
5
Q
What is H?
A
Hydrogen
6
Q
What is He?
A
Helium
7
Q
What is Li?
A
Lithium
8
Q
What is Be?
A
Beryllium
9
Q
What is B?
A
Boron
10
Q
What is C?
A
Carbon
11
Q
What is N?
A
Nitrogen
12
Q
What is O?
A
Oxygen
13
Q
What is F?
A
Fluorine
14
Q
What is Ne?
A
Neon
15
Q
What is Na?
A
Sodium
16
Q
What is Mg?
A
Magnesium
17
Q
What is Al?
A
Aluminium
18
Q
What is Si?
A
Silicon
19
Q
What is P?
A
Phosphorus
20
Q
What is S?
A
Sulphur