Periodic Table Flashcards
The Periodic Table
It shows all the elements
Vertical columns or groups
In which the elements with similar physical and chemical properties (behaviours) are grouped together
Horizontal rows or groups
Called “periods” which are in order of increasing proton number
The alkaline earth metals
Beryllium (Be)
Magnesium (Mg)
Calcium (Ca)
What do all the alkaline earth metals have in common?
They all have 2 electrons in their outer shell
The halogens
Fluorine (F)
Chlorine (Cl)
What do all the halogens have in common?
They have 7 electrons in their outer shell
The noble gases
Helium (He)
Neon (Ne)
Argon (Ar)
What do the noble gases have in common?
They all have a full outer shell of electrons in their atoms
What are ions?
When atoms lose or gain electrons they become charged particles and are called ions
How are chemical bonds formed?
A compound forms when 2 different elements chemically combine
What is ionic bonding?
Ionic bonding produces a compound that is formed from a metal and a non-metal and is made up of ions. This occurs when 1 atom loses electrons and another atom gains electrons
Combining metals and non-metals
When a metal and a non-metal are combined, the resultant compound is called after the name of the metal followed by the name of the non-metal, with its ending changed to ‘-ide’
