Melting and Boiling Points The melting point is the temperature
at which a substance changes from a............ to a..............
The boiling point is the temperature at which a substance changes
from a............ to a.............. Water melts at.....C and
boils at...... C. liquid solidliquid gas 0100
Slide 3
The periodic table is a list of all the known elements that are
arranged according to the similarities in their properties. What
type of elements are between metals and non-metals? Metals are on
the left and in the centre. Non-metals are mostly on the right.
Metals and non-metals in the periodic table
Slide 4
Some extra Information about the periodic table As you go
across the periodic table the number at the top of each element
gets higher. This is the relative atomic mass of the element. The
higher the relative atomic mass the bigger the element.
Slide 5
What are the properties (features) of metals? Good conductor of
electricity Good Conductor of heat Shiny High Density (heavy for
its size) Malleable (you can hammer into different shapes)
Slide 6
What are the properties of non- metals? Poor conductors of
electricity Poor conductors of heat Dull Low density Brittle
Slide 7
Group 1 Metals Alkali Metals
Slide 8
You need to know about there reactions with water (Equations
must also be written in this format!) Lithium + Water Lithium
Hydroxide + Hydrogen Potassium + water Potassium Hydroxide +
Hydrogen Sodium + Water Sodium Hydroxide + Hydrogen
Slide 9
Lets look at some of the alkaline metals we cant use in school!
http://www.youtube.com/watch?v=m55kgyA pYrY
http://www.youtube.com/watch?v=m55kgyA pYrY
Slide 10
Features of Group 1 Metals Like all metals they are good
conductors of electricity and heat. Shiny when cut They get more
reactive as you go down a group. There boiling point goes down as
you go down the group.
Slide 11
Group 7 Elements The Halogens
Slide 12
Properties of Halogens Need to learn! ElementSymbolState at
room temperature Colour FluorineFGasPale Yellow
ChlorineClGasYellow-Green BromineBrLiquidRed-Brown
IodineISolidGrey
Slide 13
Group 7 Reactions with Iron
http://www.youtube.com/watch?v=EvtyMr5E vBY
http://www.youtube.com/watch?v=EvtyMr5E vBY What happens to the
reactivity of group 7 metals as we go down the group?
Slide 14
Slide 15
Displacement Reactions Step 1- Order the elements into
reactivity. The most reactive at the top and the least reactive at
the bottom. Chlorine Iodine Bromine
Slide 16
Chlorine Iodine Bromine Most Reactive Least Reactive
Slide 17
Displacement Reactions The more reactive element always beats
(displaces) the less reactive element. e.g. Chlorine + Potassium
Bromide Potassium Chloride + Bromine
Features of Group 0 The Group 0 elements are known as the noble
gases. They are un-reactive, which means they do not react easily.
They show some patterns in their chemical and physical properties.
For example, the elements lower down the group are slightly more
reactive than those at the top of the group.
Slide 21
Why are they called the noble gases? They are all very
unreactive. The noble gases all form colourless gases at room
temperature. The name was changed to noble gases as they were
considered similar to the very unreactive precious metals gold and
platinum, which are sometimes called noble metals. Now only neon
and helium have not yet been made to form compounds. Noble gases
were originally called inert gases, as they were thought not to
react with anything. Then in 1962, a British chemist, Neil
Bartlett, made a compound with xenon.
