Atoms,elements,compounds & Mixtures Flashcards
1
Q
What is an element
A
An element is a substance made up of just one type of atom- a pure substance
They can be solids, liquids or gases
2
Q
What is a compound
A
A compound is a substance that is made up of more that one type of atom joined together
Compound can be made by reacting two elements toghther
3
Q
What is a molecule
A
A molecule is a small group of atoms joined toghther, they can be elements or compound
4
Q
H
A
Hydrogen
5
Q
O
A
Oxygen
6
Q
N
A
Nitrogen
7
Q
C
A
Carbon
8
Q
He
A
Helium
9
Q
S
A
Sulfur
10
Q
Fe
A
Iron
11
Q
Al
A
Aluminium
12
Q
Ag
A
Silver
13
Q
It metals on the left of the periodic table to right
A
Left
14
Q
H2O
A
Means two hydrogen atoms and one oxygen atom
15
Q
MgO
A
Means one magnesium atom and one oxygen atom
