Atoms, Elements and the Periodic table 26/11/13

Atoms, Elements and the Periodic table Grade D State what an atom is State what an element is State what a molecule is List some names of elements and their symbols Grade C Describe what a compound is Describe what the periodic table is Describe where metals and non-metals are found Recall the names and symbols of the first 20 elements Identify where groups and periods are found on the periodic table Grade B Describe the significance of elements in a row Give examples of elements with similar properties Explain how you can use formula to distinguish between an element and a compound and explain how formula can tell you the number of atoms in a compound Explain the link between number of bonds and group number Use this information to predict the formula of different compounds

Atoms, Elements and the periodic table Checklist Tick 1 All substances are made of ………… 2 A substance that is made of only one sort of atom is called an ………… 3 There are about 100 different elements which are shown on the ……………… …………… 4 The groups contain elements with similar ……………… 5 Atoms of each elements are represented by a ………………… symbol 6 I know where metals and ……-……………… appear on the Periodic table

Starter Task: Guess the name of the element

Starter Task: Guess the name of the element

Starter Task: Guess the name of the element

Starter Task: Guess the name of the element

Starter Task: Guess the name of the element

Starter Task: Guess the name of the element

Starter Task: Guess the name of the element

Starter Task: Guess the name of the element

All substances are made of atoms

A substance that is made of only one sort of atom is called an element Elements O C C C O O O C C C O O C C C O O Eg, Carbon is made up of only carbon atoms Eg, Oxygen is made up of only oxygen atoms A substance that is made of only one sort of atom is called an element

Task: Annotate your periodic table using the next few slides

The Periodic table H Li Na K Rb Cs Fr Be Sc Ti Mg V Cr Mn Fe Co Ni Cu Zn Ga Ge Se Br Ca Kr Y Zr Nb Mo Tc Ru Pd Ag Cd In Sn Sb Sr Te Rh Ba Hf Ta W Re Os Ir Au Hg Tl Pb Bi Po La At Pt Ra Rf Db Sg Bh Hs Mt ? Ac Al P N O S Cl F Ne Ar Rn I Si Xe He B C As There are about 100 different elements which are shown on the periodic table

The Periodic table There are about 100 different elements which are shown on the periodic table

Basic arrangement of the Periodic table Non-Metals Metals Metalloids Metals appear on the left and middle part of the table. Non metals appear on the right hand side of the table

Periodic table - groups Each column on a periodic table is called a group H Li Na K Rb Cs Fr Group 1 Be Mg Ca Sr Ba Ra Group 2 Ga In Tl Al B Group 3 Ge Sn Pb Si C Group 4 Sb Bi P N As Group 5 Se Te Po O S Group 6 Br At Cl F I Group 7 He Kr Ne Ar Rn Xe Group 0 Sc Ti V Cr Mn Fe Co Ni Cu Zn Y Zr Nb Mo Tc Ru Pd Ag Cd Rh Hf Ta W Re Os Ir Au Hg La Pt Rf Db Sg Bh Hs Mt ? Ac Transition Elements The groups contain elements with similar properties Na Mg

Task: Chemical symbols Some are obvious (from the first letter) H C N O S Some are a little harder (same 1st letter but different 2nd letter) Li Be He Mg Ca Some are much harder (completely different letters) Na Fe Sn Ag Hg Atoms of each elements are represented by a chemical symbol

NH4NO3 CaClCO MgSO4 H2SO4 CuO Task: For each substance below, explain what elements it is made from & how many of each element it contains. NH4NO3 CaClCO MgSO4 H2SO4 CuO

Task: Arrange the cards into groups and explain the similar properties you can see Element: … Symbol: Na Type: Metal Melting point: 98°C Boiling point: … Reactions: Reacts quickly with cold water. Reacts easily with fluorine and chlorine. Symbol: Ar Type: Non-metal Melting point: ... Boiling point: 186°C Reactions: Very unreactive. Used when welding to stop hot metal reacting with the air. Symbol: Au Type: … Melting point: 1064°C Reactions: Very unreactive so it is used to make electrical connections and jewellery.

Element: … Symbol: Na Type: Metal Melting point: 98°C Boiling point: … Reactions: Reacts quickly with cold water. Reacts easily with fluorine and chlorine. Symbol: Ar Type: Non-metal Melting point: ... Boiling point: 186°C Reactions: Very unreactive. Used when welding to stop hot metal reacting with the air. Symbol: Au Type: … Melting point: 1064°C Reactions: Very unreactive so it is used to make electrical connections and jewellery. Symbol: Cl Melting point: … Boiling point: 34°C Reactions: Quite reactive with water. Makes molecules more reactive when it is part of them. Symbol: K Melting point: 63°C Reactions: Reacts very quickly with cold water. Reacts very easily with fluorine and chlorine. Symbol: Ne Boiling point: 246°C Reactions: Very unreactive. Used as the gas in coloured lighting tubes for signs. Symbol: Li Melting Point: 181°C Boiling Point: … Reactions: Reacts well with cold water. Reactive with fluorine and chlorine. Symbol: F Melting Point: … Boiling Point: 188°C Reactions: Reacts easily with water. Symbol: H Boiling point: 253°C Reactions: Reacts with fluorine and chlorine. It is part of all acids. Symbol: C Melting point: 3527°C Reactions: Can form large networks with other carbon atoms. Symbol: O Boiling point: 183°C Reactions: Essential element for burning fuels. Symbol: Br Melting point: 7°C Boiling point: 59°C Reactions: Will react with water, fluorine and chlorine.

Calcium oxide Magnesium chloride Lithium oxide Potassium chloride Carbon dioxide Rubidium fluoride Calcium fluoride Sodium bromide Barium chloride Aluminium oxide Task: On your own Each atom that exists can form a certain number of bonds with another atom. Anything in group 1 of the periodic table can form 1 bond, group 2 can form 2 bonds, group 3 can form 3 bonds, group 4 can form 4 bonds, group 5 can form 3 bonds, groups 6 can form 2 bonds & groups 7 can form 1 bond. Use this information to colour code your periodic table (e.g. anything that forms 1 bond colour red etc). Task: Try & work out the formulae for the following compounds, based on the number of hands the atom has. Draw out each compound.

Task: Fill in your syllabus statements and tick the grade ladder I am a Grade …… I need to work on……

Plenary Task: Here is the answer… What is the question? Bonds Compound Water Sodium Carbon dioxide True

Grade D State what an atom is State what an element is State what a molecule is List some names of elements and their symbols Grade C Describe what a compound is Describe what the periodic table is Describe where metals and non-metals are found Recall the names and symbols of the first 20 elements Identify where groups and periods are found on the periodic table Grade B Describe the significance of elements in a row Give examples of elements with similar properties Explain how you can use formula to distinguish between an element and a compound and explain how formula can tell you the number of atoms in a compound Explain the link between number of bonds and group number Use this information to predict the formula of different compounds Grade D State what an atom is State what an element is State what a molecule is List some names of elements and their symbols Grade C Describe what a compound is Describe what the periodic table is Describe where metals and non-metals are found Recall the names and symbols of the first 20 elements Identify where groups and periods are found on the periodic table Grade B Describe the significance of elements in a row Give examples of elements with similar properties Explain how you can use formula to distinguish between an element and a compound and explain how formula can tell you the number of atoms in a compound Explain the link between number of bonds and group number Use this information to predict the formula of different compounds Grade D State what an atom is State what an element is State what a molecule is List some names of elements and their symbols Grade C Describe what a compound is Describe what the periodic table is Describe where metals and non-metals are found Recall the names and symbols of the first 20 elements Identify where groups and periods are found on the periodic table Grade B Describe the significance of elements in a row Give examples of elements with similar properties Explain how you can use formula to distinguish between an element and a compound and explain how formula can tell you the number of atoms in a compound Explain the link between number of bonds and group number Use this information to predict the formula of different compounds Grade D State what an atom is State what an element is State what a molecule is List some names of elements and their symbols Grade C Describe what a compound is Describe what the periodic table is Describe where metals and non-metals are found Recall the names and symbols of the first 20 elements Identify where groups and periods are found on the periodic table Grade B Describe the significance of elements in a row Give examples of elements with similar properties Explain how you can use formula to distinguish between an element and a compound and explain how formula can tell you the number of atoms in a compound Explain the link between number of bonds and group number Use this information to predict the formula of different compounds Grade D State what an atom is State what an element is State what a molecule is List some names of elements and their symbols Grade C Describe what a compound is Describe what the periodic table is Describe where metals and non-metals are found Recall the names and symbols of the first 20 elements Identify where groups and periods are found on the periodic table Grade B Describe the significance of elements in a row Give examples of elements with similar properties Explain how you can use formula to distinguish between an element and a compound and explain how formula can tell you the number of atoms in a compound Explain the link between number of bonds and group number Use this information to predict the formula of different compounds Grade D State what an atom is State what an element is State what a molecule is List some names of elements and their symbols Grade C Describe what a compound is Describe what the periodic table is Describe where metals and non-metals are found Recall the names and symbols of the first 20 elements Identify where groups and periods are found on the periodic table Grade B Describe the significance of elements in a row Give examples of elements with similar properties Explain how you can use formula to distinguish between an element and a compound and explain how formula can tell you the number of atoms in a compound Explain the link between number of bonds and group number Use this information to predict the formula of different compounds