1. BTEC Unit 1: Principles Chemistry

2. Elements, mixtures and compounds
WALT: Elements, mixtures and compounds WILF: Be able to give the definition and identify elements, mixtures and compounds

3. PLTS: Creative Thinking
5 mins
What do you know about elements, mixtures and compounds....???

4. Definitions Elements Mixtures Compounds
A substance made up of only one type of atom
A substance made up of two types of atoms NOT joined together
A substance made up of TWO or more types of atom chemically joined together

5. Task
Are the following things elements, mixtures or compounds? Worksheet

6. Where can we find all of the elements?
The Periodic Table

7. Task
Colour the staircase on your periodic table and label where the metals and non-metals are. Colour and label the different groups in the table. Label the rows as periods and the columns as groups.

8. Demo Important! Group 1 – The Alkali Metals Demo and Video
Elements in the same group have similar chemical properties

9. Task Are the following elements, metals or non metals? Calcium Argon
Magnesium
Strontium
Nitrogen
Bromine
Polonium
Arsenic
Sodium
Sulphur

10. Atomic Structure Walt: Atomic Structure Wilf:
Describe the make up and atomic structure of different atoms

11. PLTS: Creative Thinking
5 mins
What do you know about atoms....???

12. Atomic Structure Diagram
Sub-atomic particle
Charge
Mass
Note how small the nucleus is

13. Numbers

14. Mass Numbers – Complete table
Element Name
Element Symbol
Number of Protons
Number of electrons
Number of Neutrons Mg 12
Arsenic Pt 78
Fermium Fm
157 F 9
Iron 26 Al

15. Mass Numbers Magnesium Mg 12 Arsenic As 33 42 Platinum Pt 78 117
Element Name
Element Symbol
Number of Protons
Number of electrons
Number of Neutrons
Magnesium Mg 12
Arsenic As 33 42
Platinum Pt 78
117
Fermium Fm
100
157
Fluorine F 9 10
Iron Fe 26 30
Aluminium Al 13 14

16. Isotopes
Definition Atom of the same element with a different number of protons

17. Electrons and the periodic table
Walt: Electrons and the periodic table Wilf: Describe the arrangement of the periodic table in terms of electrons

18. Electron Configuration
Shell
Number of Electrons 1 2 8 3
worksheet

19. Electrons and the periodic table
Write the electron shorthand for the elements, Lithium, Sodium and Potassium.
Write the electron shorthand for Beryllium, Magnesium and Calcium.
What do you notice about where they are in the periodic table and their electron arrangement?
The group number tells you how many electrons are present in the outside shell!!

20. How many electrons do the following elements have in their outside shell?
Carbon
Strontium
Iodine Sn Kr He

21. Equations
Walt: Word and symbol equations Wilf: Be able to write word and symbol equations

22. Task
Burning magnesium Observations: Word Equation: Symbol Equation:

23. Task
Burning iron Observations: Word Equation: Symbol Equation:

24. Acids.....

25. The pH Scale

26. Acid Rain and the uses of neutralisations

27. Acids with metals
Acid Metal > Salt Hydrogen

28. Acids with metals If we get a squeaky pop then Hydrogen is given off
Observations
Squeaky pop?

29. Acid Salt Hydrochloric acid __________ chloride Nitric acid
__________ nitrate
Sulphuric acid
__________ sulphate
Example
Magnesium + Hydrochloric acid -> Magnesium chloride + Hydrogen
Zinc + Nitric acid -> Zinc Nitrate + Hydrogen
Lead + Sulphuric acid -> Lead Sulphate + Hydrogen

30. Magnesium + Nitric acid ->
Zinc + Sulphuric acid ->
Lead + Hydrochloric acid ->
________ + __________ -> Calcium Chloride + Hydrogen
Sodium + ___________ -> Sodium nitrate + Hydrogen
Potassium +__________ -> Potassium sulphate + _________

31. Carbonates with Acid
Acid + Metal Carbonate ---> Salt + Water + Carbon Dioxide How do we know the gas is carbon dioxide?

32. Metal oxides and Metal Hydroxides with Acid
Acid + Metal Oxide  Salt + Water Acid + Metal Hydroxide  Salt + Water