Alkali Metals – Group 1

Demonstration https://www.youtube.com/watch?v=m55kgyApYrY

Group 1 1 electron in outer shell Similar reactivity

Alkali Metals Are soft grey metals at room temperature Have one electron in the outer shell so all react in a similar way Get more reactive down the group Use page 26-27 to write down word and symbol equations for the reactions of sodium with: Oxygen Chlorine Water C2.19c Worksheet Answer questions 1-5 page 26+27 Worksheet is suitable for foundation

Halogens – Group 7

Demonstration Fluorine: https://www.youtube.com/watch?v=vtWp45Eewtw

The halogens all have _________ electrons in their outer shell. The halogens are non-metals and consist of molecules made of pairs of atoms (e.g. Br2). The formula for chlorine is: The formula for iodine is: In Group 7, the further down the group an element is the higher its m_______________ n______________, m___________ point and b_____________ point. In Group 7, the reactivity of the elements ______________ going from fluorine to iodine Copy the equation to show the reaction between fluorine and hydrogen on page 28 Describe the difference in that reaction compared to the reaction of iodine with hydrogen Answer Q2a, 2b Write a word and balanced symbol equation to show the reaction between iron and bromine to make iron bromide (formula is at the bottom of pg. 28) Start reading through page 29

Complete the fill in the gap provided and stick in Copy the equation to show the reaction between fluorine and hydrogen on page 28 Describe the difference in that reaction compared to the reaction of iodine with hydrogen Answer Q2a, 2b Write a word and balanced symbol equation to show the reaction between iron and bromine to make iron bromide (formula is at the bottom of pg. 28) Start reading through page 29

Halogen reactions https://www.youtube.com/watch?v=TLOFaWdPxB0

Displacement reactions Cl2(aq) + 2KBr(aq)  2KCl(aq) + Br2(aq) Reaction takes place as chlorine is more reactive than bromine so displaces it I2(aq) + 2KBr(aq)  no reaction as iodine is less reactive than bromine so cannot displace it Continue with questions on page 29. Skip 3b.

Answer all questions on page 29. Skip 3b. Halogens boiling point worksheet – will need graph paper

Explaining Reactivity Trends – lithium vs. sodium Fluorine vs. chlorine For the group 1 metals – the bigger the atom the easier it is to lose an electron so becomes more reactive For the halogens – the bigger the atom the harder it is to gain an electron so becomes less reactive

Copy diagram from the board State one similarity between lithium and sodium’s electrons State one difference between lithium and sodium’s electrons State one similarity between fluorine and chlorine’s electrons State one difference between fluorine and chlorine’s electrons Read the “Key Points” box page 31 and use it to help you write down three factors which affect the electrostatic attraction between the nucleus and the electrons Answer all questions on page 31 – pay careful attention to the number of marks. Use the “key points” box and your notes to help you. Finish all questions on page 29 Look back at page 24-25 and read the section on Noble Gases

Noble Gases – Group 0

Helium periodic table of videos: https://www. youtube. com/watch

Write full sentence answers. Use page 25 to help Write full sentence answers. Use page 25 to help. How is the outer shell of a Noble gas different to the outer shell of every other element? Use your glossary to define inert Explain why the Noble gases are inert How does the boiling point of the gases change from helium to radon? State what temperature you would need to cool helium down to in order to turn it into a liquid Do the same for Radon Q4 on page 25 Start Q2 and Q3 on page 34

Transition metals (T)

High melting points (except mercury) Coloured compounds Stronger and harder than alkali metals https://www.youtube.com/watch?v=vwd4qsmUxwM

Copper: https://www.youtube.com/watch?v=kop1sWzTK-I

Also very useful as catalysts

Questions 1 and 2 page 33 Question 4 page 34