Periodic Table Flashcards
Element
An element is a substance that is made of only one type of atom. Elements are the simplest substances in the universe.
Group
A group is a vertical column in the periodic table. They are ordered in reactivity.
Period
A period is a horizontal row left to right on the periodic table.
Alkali metals
The alkali metals is group 1 in the periodic table. All elements in that group have 1 electron in it’s outer shell
Alkaline earth metals
The alkaline earth metals is group 2 in the periodic table. All elements in this group have 2 electrons in their outer shell.
Halogens
Halogens is group 7 in the periodic table. All the elements in that group have 7 electrons in their outer shell
Noble gases
The noble gases is group 0 in the periodic table. The elements in this group of have 8 electrons in their outer shell.
Transition metals
The transition metals are the elements that serve as a bridge between the two sides of the table
Periodic table
The periodic table is a table that organises the elements into places that suit the chemical properties that it has
Metal + acid
Metal salt + hydrogen
Metal +oxygen
Metal oxide
Metal + water
Metal hydroxide + hydrogen
Displacement reactions
Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound.
e.g iron nails with copper sulfate
Metal ore
An ore is a solid that metal can be extracted from.
How are metals extracted from metal ore
The metals below carbon (e.g copper) are extracted by heating it with carbon. Copper oxide + carbon → copper + carbon dioxide. The copper oxide is reduced as carbon is oxidised. For metals above carbon in the reactivity series, they are separated by using electrolysis. This is the breakdown of a current using a electric current.
Thermite reaction
A thermite reaction is when a displacement reaction happens but it releases a lot of energy. It is an exothermic reaction
Reactivity series
The reactivity series is the order of how reactive metals are.
What is the symbol for Lithium
Li
What is the symbol for Beryllium
Be
What is the symbol for hydrogen
H
What is the symbol for helium
He
What is the symbol for boron
B
What is the symbol for carbon
C
What is the symbol for nitrogen
N
What is the symbol for oxygen
O
What is the symbol for fluorine
F
What is the symbol for neon
Ne
What is the symbol for sodium
Na
What is the symbol for magnesium
Mg
What is the symbol for aluminium
Al
What is the symbol for silicon
Si
What is the symbol for phosphorus
P
What is the symbol for sulphur
S
What is the symbol for chlorine
Cl
What is the symbol for argon
Ar
What is the symbol for potassium
K
What is the symbol for calcium
Ca
