Periodic Table Flashcards
Describe the physical
properties of group 1.
They have low melting and boiling points compared to most other metals. they are very soft and can be cut easily with a knife. they have low densities.
Describe the physical properties of group 7
They both have low boiling points and low melting points. The melting and boiling points increase as you go done the group.
The halogens become darker as you go down the group.
What are displacement reactions in group7?
A displacement reaction is when a more reactive element (from the periodic table) pushes out of the way- displaces- a less reactive element, e.g fluorine displacing bromine
What is a group?
A group is an amount of different elements of different chemical reactions.
What is a period?
A period is the name given to a horizontal row of the periodic table.
Describe a the trend in period 2.
The trend is that the higher you go up the more reactive each one of the pm will then become. This means the more reactive they are.
Explain the chemical properties of group 1.
They are extremely explosive and chemical reactive (they are the most reactive element). And are able to displace many different less reactive elements. They give out heat- exothermic.
Describe the physical properties of group 0.
The lower you go down the column the more boiling point goes up and also the lower you go down the more denser the elements get.
Describe the chemical properties of group 0.
The chemical properties of the group 0 non-metals is that they are very un-reactive and you find them on the right hand side of the periodic table.
Explain the chemical properties of group 7.
The non-metal elements in Group 7 - known as the halogens - get less reactive as you go down the group. This is the opposite trend to that seen in the alkali metals in Group 1 of the periodic table. Fluorine is the most reactive element of all in Group 7.
